What is the difference between Cmp and Bmp?

Cmp is a compressed image format that reduces file size, while Bmp is an uncompressed raster format that stores pixel data exactly as captured.

Which is better, Cmp or Bmp, for image quality?

Bmp is better for image quality because it preserves every pixel without compression loss, whereas Cmp sacrifices some visual detail to achieve smaller files.

Is a Cmp file smaller than a Bmp file?

Yes, a Cmp file is significantly smaller than a Bmp file because Cmp uses compression algorithms to eliminate redundant data, whereas Bmp stores every pixel individually.

Does converting Bmp to Cmp reduce storage costs?

Yes, converting Bmp to Cmp reduces storage costs because the compressed Cmp format can shrink file sizes by over 90 percent for photographic images.

Are Cmp files safe to use for professional printing?

No, Cmp files are not safe for professional printing because compression artifacts degrade fine details, whereas Bmp provides the lossless clarity print shops require.

Is Cmp compatible with all image editing software?

No, Cmp is not compatible with all image editing software because it is a proprietary format, whereas Bmp is a standard Windows format supported by nearly every application.

What is the most common beginner mistake when choosing between Cmp and Bmp?

The most common beginner mistake is choosing Cmp for archival work, because its lossy compression permanently discards image data that Bmp would retain.

Can Cmp and Bmp files be used interchangeably in web design?

No, Cmp and Bmp files cannot be used interchangeably in web design because Bmp files are too large for fast loading, whereas Cmp offers practical web-friendly sizes.

Which format, Cmp or Bmp, is used for medical imaging scans?

Bmp is used for medical imaging scans because its lossless format preserves diagnostic detail, whereas Cmp compression could hide subtle anomalies in the image.

Can I switch a Bmp file to Cmp without losing any original data?

No, you cannot switch a Bmp file to Cmp without losing original data because the conversion process discards visual information permanently to achieve compression.

Difference Between

Difference Between Cmp and Bmp

Written byNex Virox Team

Editorial Team

Reviewed byVarshal Nirbhavane

Senior SEO & Organic Growth Professional · 5+ years

Published: September 3, 202619 min read

Quick answer

The main difference between Cmp and Bmp is that Cmp is a compressed image file format, while Bmp is an uncompressed raster format. Cmp is a proprietary compression method used to reduce file size, whereas Bmp stores pixel data without compression, resulting in larger files but simpler editing.

Key takeaways

Core distinction: Cmp compares two files byte-by-byte, while Bmp is a bitmap image format storing pixel data.
How each works: Cmp outputs differences and exit codes, whereas Bmp encodes visual images with headers and color arrays.
Cost and performance: Cmp runs instantly on text files, but Bmp files consume large storage due to uncompressed pixel data.
Best-fit use case: Cmp suits scripted file verification, while Bmp fits simple graphics, icons, or legacy Windows applications.
Common decision mistake: Confusing Cmp command output with Bmp image data causes errors when processing binary versus visual content.

Table of Contents18 sections

Difference Between Cmp and Bmp: Comparison Table

Aspect	Cmp	Bmp
Definition	A file format that stores image data using run-length encoding compression.	A raster graphics file format that stores pixel data uncompressed in a bitmap array.
Purpose	Reduces file size for storage and faster transmission of images.	Provides a simple, universal format for raw pixel data exchange.
Core Mechanism	Replaces consecutive identical pixels with a single value and count pair.	Maps each pixel directly to a color value in a rectangular grid.
File Extension	Uses the .cmp filename extension for saved compressed image files.	Uses the .bmp filename extension for bitmap image files.
Compression Type	Applies lossless run-length encoding to eliminate redundant pixel sequences.	Typically stores data with zero compression, though RLE variants exist.
Image Quality	Preserves original pixel data exactly with no visual information loss.	Retains every pixel value precisely, guaranteeing perfect fidelity.
File Size	Produces significantly smaller files than raw bitmap formats.	Creates large files proportional to image dimensions and color depth.
Color Depth	Supports 1-bit monochrome up to 24-bit true color images.	Supports 1-bit monochrome through 32-bit with alpha channel.
Encoding Speed	Compresses quickly due to simple sequential scan algorithms.	Writes pixels directly with no processing overhead required.
Decoding Speed	Expands rapidly by repeating pixel runs into the output buffer.	Reads memory directly with minimal CPU computation needed.
Compression Ratio	Achieves high ratios on images with large uniform color areas.	Offers no size reduction, as each pixel stores independently.
Header Size	Contains a compact header with compression metadata and dimensions.	Includes a 14-byte file header plus 40-byte info header.
Pixel Storage	Stores pixel runs as length-value pairs rather than individual entries.	Stores each pixel sequentially in bottom-up row order.
Platform Support	Found primarily in specific graphics applications and legacy systems.	Native support across Windows, macOS, Linux, and web browsers.
Standardization	Lacks an official standards body governing its specification.	Defined by Microsoft as part of the Windows Graphics Device Interface.
Memory Usage	Requires less disk space but similar RAM during decompression.	Maps directly to memory, enabling fast pixel manipulation.
Editing Flexibility	Requires decompression before most pixel-level editing operations.	Allows direct random access to any pixel for immediate modification.
Transparency Support	Offers limited transparency via specific palette entries.	Supports alpha channel transparency in 32-bit versions.
Metadata Capacity	Stores minimal metadata limited to basic image properties.	Can embed ICC profiles and color space information.
Typical File Size	Ranges from kilobytes to a few megabytes depending on content.	Often tens of megabytes for high-resolution photographs.
Compression Artifacts	Produces zero artifacts because the algorithm is fully lossless.	Introduces no artifacts since no compression is applied.
Processing Overhead	Adds CPU work for encoding and decoding operations.	Bypasses compression logic, reducing processor load.
Image Dimensions	Handles large dimensions but efficiency drops with noisy images.	Handles any dimensions with file size growing linearly.
Software Compatibility	Requires specialized viewers or converters for most applications.	Opens natively in virtually every image editing program.
Historical Usage	Used in early graphics software for space-constrained storage.	Served as the default Windows bitmap format since 1990.
Common Applications	Appears in legacy paint programs and embedded system graphics.	Used for icons, wallpapers, and raw image processing pipelines.
Typical Users	Developers working with constrained storage environments.	Designers and programmers needing universal image compatibility.
Performance Trade-off	Sacrifices processing time for reduced storage footprint.	Sacrifices storage space for maximum access speed.
Primary Limitation	Poor compression on photographic or high-noise image content.	Impractical file sizes for web delivery or large archives.
Best-Fit Scenario	Ideal for simple graphics with large flat color regions.	Best for pixel-perfect editing and cross-platform raw storage.

What Is Cmp?

Cmp is a file extension for C++ source code files that contain class definitions, function implementations, and program logic. It stores human-readable text written in the C++ programming language, which compilers translate into executable machine code. Cmp files enable modular code organization and reuse across software projects.

Definition of Cmp

A Cmp file is a plain-text source code file written in C++ that typically contains the implementation details of classes, methods, and functions declared in corresponding header files. It follows standard C++ syntax rules and requires compilation through a C++ compiler to produce object files or executable programs.

Key Characteristics of Cmp

Characteristic	What It Means in Practice
Text-based format	Stores readable ASCII or UTF-8 characters, allowing developers to open and edit files in any text editor.
Compilation required	Must be processed by a compiler like GCC or Clang to translate C++ code into executable binary instructions.
Modular structure	Contains self-contained units like classes and functions, enabling separation of concerns across multiple files.
Header dependency	Often includes corresponding .h or .hpp files to access declarations, promoting code organization and reuse.
Platform independent	Source code remains portable across operating systems, though compiled binaries differ per target platform.
Case sensitive	Treats uppercase and lowercase identifiers as distinct, requiring consistent naming conventions throughout the codebase.
Preprocessor support	Supports directives like #include and #define, enabling conditional compilation and macro-based code generation.
Manual memory control	Allows direct pointer management with new and delete operators, giving developers precise control over resource allocation.
Performance oriented	Compiles to native machine code, offering high execution speed suitable for systems programming and game engines.
Debugging support	Works with debuggers like GDB, enabling step-by-step execution, breakpoints, and variable inspection during development.

Common Examples of Cmp

Game engine modules – Unreal Engine uses .cpp files for gameplay logic, rendering systems, and physics calculations.
Embedded systems firmware – Arduino projects store microcontroller control code in .cpp files for sensor reading and actuation.
Operating system components – Linux kernel drivers implement device communication routines in .cpp source files.
Database management systems – MySQL and PostgreSQL use .cpp files for query processing and storage engine implementation.
Financial trading platforms – High-frequency trading systems implement low-latency order matching algorithms in .cpp files.
Scientific computing libraries – Eigen and Boost store numerical analysis routines in .cpp files for matrix operations.
Web browser engines – Chrome and Firefox use .cpp files for JavaScript interpretation and page rendering pipelines.
Robotics control systems – ROS (Robot Operating System) nodes implement sensor fusion and path planning in .cpp files.
Telecommunications software – 5G base station controllers process signal modulation algorithms in .cpp source code.
Computer-aided design tools – AutoCAD and SolidWorks implement 3D modeling operations in .cpp files for geometric calculations.

Advantages and Limitations of Cmp

Advantages	Limitations
High performance execution due to direct machine code compilation without interpreter overhead.	Steep learning curve requiring understanding of pointers, memory management, and complex syntax rules.
Fine-grained control over system resources including memory allocation, CPU usage, and hardware interaction.	Manual memory management risks memory leaks, dangling pointers, and buffer overflow vulnerabilities.
Extensive standard library providing containers, algorithms, and I/O operations for rapid development.	No built-in garbage collection, forcing developers to explicitly track and release allocated memory.
Cross-platform portability of source code across Windows, Linux, and macOS with minor modifications.	Longer compilation times compared to interpreted languages, slowing down iterative development cycles.
Rich ecosystem of third-party libraries like Boost, Qt, and OpenCV for specialized functionality.	Platform-specific quirks in compilers and linkers can cause portability issues despite standard compliance.
Strong type system catching many errors at compile time rather than runtime.	No built-in support for modern web development patterns without additional frameworks or libraries.
Backward compatibility with C code, allowing integration of legacy systems and libraries.	Complex template syntax can produce cryptic error messages that confuse novice developers.
Multi-paradigm support enabling procedural, object-oriented, and generic programming styles.	Lack of standard package manager makes dependency management more manual than in Python or JavaScript.
Small runtime footprint making it suitable for resource-constrained embedded environments.	Undefined behavior in edge cases can cause unpredictable crashes that are difficult to diagnose.
Active community and long-standing industry adoption ensuring abundant learning resources.	Verbose syntax requiring more lines of code than equivalent Python or Ruby implementations.

What Is Bmp?

Bmp is a raster graphics file format developed by Microsoft that stores digital images pixel by pixel. It exists to provide a simple, widely compatible method for saving image data without compression losses. Bmp files work across Windows, macOS, and Linux platforms without special decoding software.

Definition of Bmp

Bmp, short for bitmap, is an uncompressed image file format that maps each pixel to a specific color value using a fixed header and data array. This format defines image dimensions, color depth, and pixel arrangement in a straightforward structure. Bmp preserves every original pixel exactly as captured, making it ideal for archival and editing workflows.

Key Characteristics of Bmp

Characteristic	What It Means in Practice
Uncompressed data	Every pixel stores exact color values, producing large files but zero quality loss during saving.
Fixed header	A 54-byte header stores width, height, bit depth, and compression method for reliable decoding.
Color depth options	Supports 1, 4, 8, 16, 24, and 32 bits per pixel, covering monochrome to true color images.
Bottom-up storage	Pixel rows are stored from bottom to top, requiring software to flip the image during display.
No transparency layers	Alpha channel support is limited to 32-bit versions, unlike PNG's full transparency handling.
Simple structure	Direct pixel mapping makes Bmp easy to parse, edit, and convert with minimal programming effort.
Large file size	A 24-bit 1920x1080 image occupies roughly 6.2 MB, making Bmp impractical for web delivery.
RLE compression option	Run-length encoding reduces file size for simple images but remains less efficient than modern codecs.
Platform native	Windows uses Bmp as its default image format, ensuring seamless integration with older applications.
Metadata absence	Bmp lacks EXIF or IPTC fields, so camera settings and copyright data cannot be embedded.

Common Examples of Bmp

Windows wallpaper - Classic default backgrounds like Bliss shipped as Bmp files for system compatibility.
Legacy game sprites - Early Windows games stored character and object graphics in Bmp for fast loading.
Medical imaging - Some radiology software exports unprocessed scans as Bmp to avoid compression artifacts.
Icon files - Small Bmp images form the basis of .ico files used for application and folder icons.
Print production - Prepress workflows use Bmp for high-fidelity proofs where pixel accuracy matters.
Embedded systems - Microcontroller displays often use Bmp for simple UI elements without decoding overhead.
Scientific analysis - Research tools save microscopy or satellite data as Bmp for pixel-level examination.
Software splash screens - Older programs displayed Bmp images during startup for instant rendering.
Document scanning - Flatbed scanners historically output Bmp files for direct image manipulation.
Educational programming - Computer science courses use Bmp to teach pixel manipulation and file I/O basics.

Advantages and Limitations of Bmp

Advantages	Limitations
Lossless pixel preservation ensures no quality degradation during repeated saves.	Massive file sizes make Bmp unsuitable for email attachments or web page images.
Universal compatibility works across all operating systems and image viewers without plugins.	No compression means storage costs escalate quickly for high-resolution or batch photography.
Simple format structure enables easy custom parsing for developers and hobbyists.	Lacks EXIF metadata, preventing camera settings and geolocation data from being stored.
Direct pixel access allows fast read/write operations for image processing algorithms.	No alpha channel in standard 24-bit versions, limiting transparency for graphic design work.
Zero decoding latency makes Bmp ideal for real-time systems and embedded displays.	RLE compression only helps simple images, offering negligible savings for photographs.
Wide color depth range supports everything from 1-bit monochrome to 32-bit true color.	No interlacing or progressive loading, forcing full file download before any display.
Stable format specification unchanged since Windows 3.0, ensuring long-term readability.	Bottom-up row order confuses novice programmers and requires extra conversion steps.
No patent restrictions allow free use in commercial and open-source software projects.	Lacks animation support, unlike GIF or APNG, limiting use for simple motion graphics.
Exact color fidelity suits archival tasks where pixel-perfect reproduction is critical.	No built-in color profile management, causing color shifts across different monitors.
Efficient for low-resolution images like icons where file size remains manageable.	Modern formats like WebP achieve 90% smaller files with similar visual quality.

Similarities Between Cmp and Bmp

Shared Aspect	How Cmp and Bmp Are Alike
Core purpose	Cmp and Bmp both serve as file formats designed to store and organize digital data.
File category	Cmp and Bmp both belong to the broader category of computer file formats used for data storage.
Binary structure	Cmp and Bmp both rely on binary encoding to represent their respective data at the fundamental level.
Digital output	Cmp and Bmp both produce digital files that are readable and processable by computer systems.
Software support	Cmp and Bmp both require compatible software applications to open, view, or manipulate their contents.
User base	Cmp and Bmp both attract users who work with digital files in technical or creative workflows.
File extension	Cmp and Bmp both use distinct three-letter file extensions to identify their format to operating systems.
Storage medium	Cmp and Bmp both can be stored on standard storage devices like hard drives and solid-state drives.
Data integrity	Cmp and Bmp both depend on data integrity to ensure the file remains uncorrupted and usable.
File size impact	Cmp and Bmp both have file sizes that directly affect storage capacity and transfer time requirements.
Transfer method	Cmp and Bmp both can be transferred between systems using standard file transfer protocols and methods.
Backup practice	Cmp and Bmp both benefit from regular backup practices to prevent data loss from accidental deletion.
Version compatibility	Cmp and Bmp both face compatibility considerations across different software versions and operating platforms.
Error handling	Cmp and Bmp both require error handling mechanisms when software encounters corrupt or invalid file data.
Metadata support	Cmp and Bmp both can support metadata that describes the file's origin, creation date, or other properties.
Compression potential	Cmp and Bmp both can undergo compression to reduce their file size for more efficient storage.
Processing requirement	Cmp and Bmp both require some level of processing power to encode or decode their data correctly.
Creation tool	Cmp and Bmp both are created using specific software tools that generate the file in the respective format.
Format specification	Cmp and Bmp both follow a defined format specification that dictates how data is structured within the file.
File naming	Cmp and Bmp both rely on proper file naming conventions to help users identify and organize their files.
Security risk	Cmp and Bmp both can carry security risks if opened from untrusted sources containing malicious code.
Maintenance need	Cmp and Bmp both require ongoing maintenance of software to ensure continued support for the format.
Cross-platform use	Cmp and Bmp both are designed for use across multiple operating systems like Windows, macOS, and Linux.
Data conversion	Cmp and Bmp both can be converted to other formats using conversion software when compatibility is needed.
Performance metric	Cmp and Bmp both are evaluated on performance metrics like access speed and processing efficiency.
User documentation	Cmp and Bmp both have user documentation and resources available to help users understand the format.
Long-term viability	Cmp and Bmp both depend on ongoing community or corporate support for their long-term viability.
Testing requirement	Cmp and Bmp both should undergo testing to verify that files open correctly and function as expected.
Cost consideration	Cmp and Bmp both may involve costs for premium software tools needed to work with them.
Learning curve	Cmp and Bmp both present a learning curve for new users who must understand format-specific behaviors.

Cmp or Bmp: Which Should You Choose?

The single variable that decides it is file size versus compatibility. If you need tiny files for web use, choose Cmp. If you need maximum software and hardware support, choose Bmp. Most people pick Cmp for sharing and Bmp for editing.

When to Use Cmp

Choose Cmp when storage space or page load speed is your top priority. It suits websites, email attachments, and mobile apps where every kilobyte counts. Use it for photos and complex images, but avoid it for logos or text-heavy graphics that need sharp edges.

When to Use Bmp

Choose Bmp when lossless quality and universal compatibility matter more than file size. It works for medical imaging, scientific analysis, or legacy software that rejects compressed formats. Use it for simple icons or when you need pixel-perfect data without any compression artifacts.

Common Misconceptions About Cmp and Bmp

Common Myth	The Reality
Cmp and Bmp are completely unrelated file formats with nothing in common.	Both Cmp and Bmp store raster image data, but Cmp uses compression while Bmp stores pixels uncompressed.
Bmp files always have a larger file size than Cmp files.	Bmp files are typically larger because they store raw pixel data, whereas Cmp applies compression to reduce file size.
Cmp is a newer format that replaced Bmp entirely in modern systems.	Cmp did not replace Bmp; Bmp remains widely supported in Windows, while Cmp serves specific compressed-image use cases.
Bmp supports transparency, but Cmp does not support alpha channels at all.	Bmp lacks native alpha-channel transparency, while Cmp can support transparency depending on the specific compression variant used.
You can convert a Cmp file to Bmp without any loss of image quality.	Converting Cmp to Bmp preserves the decompressed pixels, but any quality lost during Cmp compression stays lost permanently.
Cmp files are always smaller than Bmp files for every single image.	Highly detailed or noisy images may compress poorly in Cmp, sometimes yielding a file size close to or larger than Bmp.
Bmp files cannot be opened on Mac computers or Linux systems.	Bmp is a widely supported format; most Mac and Linux image viewers open Bmp files without requiring any special software.
Cmp is the same thing as JPEG because both use lossy compression.	Cmp uses lossless or proprietary compression methods, whereas JPEG uses lossy compression that discards image data permanently.
Bmp images always display faster on screen than Cmp images.	Bmp loads faster because no decompression is needed, but Cmp requires CPU time to decompress before the image can display.
Cmp files are unsafe to download because they often contain viruses.	Cmp is just an image format; any file type can carry malware, but Cmp itself poses no inherent security risk.
Bmp is only used for icons and wallpapers on old Windows computers.	Bmp is used in medical imaging, GIS applications, and legacy software where uncompressed pixel accuracy is essential.
Converting Bmp to Cmp always improves image quality and sharpness.	Converting Bmp to Cmp never improves quality; it only reduces file size, and some Cmp variants may slightly alter pixel values.
Cmp and Bmp have identical color depth options, so they look exactly the same.	Bmp supports 1-bit to 32-bit color depths, while Cmp color depth depends on the compression algorithm and container specification.
Bmp files cannot be compressed at all, making them useless for web use.	Bmp can be compressed using external tools like ZIP or RAR, but the format itself stores uncompressed pixel data natively.
Cmp is a proprietary format owned by a single company like Adobe.	Cmp is a generic abbreviation for compressed image formats; no single company owns the Cmp extension universally.
Bmp files support animation, similar to GIF files.	Bmp is a static image format with no animation support; Cmp also stores single frames rather than animated sequences.
Opening a Cmp file requires expensive commercial software that beginners cannot afford.	Many free tools like IrfanView, GIMP, and XnView open Cmp files, so no expensive software is necessary for viewing.
Bmp is a lossy format because it discards some color information during saving.	Bmp is strictly lossless; it stores exact pixel values, but this precision causes larger file sizes compared to Cmp.
Cmp files cannot be printed directly from standard photo editing programs.	Most photo editors decompress Cmp internally and print the resulting image, so printing Cmp files works without manual conversion.
Bmp files from a scanner are always better quality than Cmp files from the same scanner.	Bmp preserves every scanned pixel exactly, while Cmp may introduce minor compression artifacts, making Bmp technically more accurate.
Cmp is only used for 3D graphics and never for regular photographs.	Cmp is used for various images including photos, but its adoption depends on the software ecosystem rather than image content type.
Bmp files cannot store metadata like camera settings or GPS coordinates.	Bmp can store metadata in application-specific chunks, but support varies widely, unlike formats with standardized EXIF data.
Renaming a Bmp file to Cmp will compress it and reduce its file size.	Renaming a Bmp file to Cmp only changes the extension; the pixel data remains uncompressed and the file size stays identical.
Cmp images always have visible pixelation or blocky artifacts when zoomed in.	Lossless Cmp variants preserve exact pixels with no artifacts, while lossy Cmp variants may show compression noise at high zoom.
Bmp is obsolete and no modern software supports opening Bmp files anymore.	Bmp remains fully supported in Windows, macOS, Linux, and virtually all image editors, making it far from obsolete.
Cmp files take longer to upload to websites than Bmp files of the same image.	Cmp files upload faster than Bmp because compression reduces byte count, assuming the website accepts the Cmp format.
Bmp files are always 24-bit color, so they cannot display grayscale images.	Bmp supports 8-bit grayscale palettes and other depths, so grayscale Bmp images are perfectly valid and common.
Cmp is a standard format recognized by every web browser without plugins.	Web browsers do not natively render Cmp; you need an image viewer or converter, unlike Bmp which some browsers display.
Bmp files cannot be edited because they are locked or read-only by default.	Bmp files are fully editable in any raster editor like Photoshop or GIMP; no locking mechanism exists in the format.
Cmp and Bmp are interchangeable, so you can swap extensions without any consequences.	Swapping extensions corrupts file recognition; Cmp and Bmp use different internal structures, so software will fail to open mismatched files.

Conclusion

Difference Between Cmp and Bmp comes down to compression. Cmp shrinks files to save space, while Bmp stores uncompressed pixel data for maximum quality. Choose Cmp when storage or transfer speed matters most. Choose Bmp when you need lossless, edit-ready images without decoding overhead.

FAQs on Difference Between Cmp and Bmp

What is the difference between Cmp and Bmp?: Cmp is a compressed image format that reduces file size, while Bmp is an uncompressed raster format that stores pixel data exactly as captured.
Which is better, Cmp or Bmp, for image quality?: Bmp is better for image quality because it preserves every pixel without compression loss, whereas Cmp sacrifices some visual detail to achieve smaller files.
Is a Cmp file smaller than a Bmp file?: Yes, a Cmp file is significantly smaller than a Bmp file because Cmp uses compression algorithms to eliminate redundant data, whereas Bmp stores every pixel individually.
Does converting Bmp to Cmp reduce storage costs?: Yes, converting Bmp to Cmp reduces storage costs because the compressed Cmp format can shrink file sizes by over 90 percent for photographic images.
Are Cmp files safe to use for professional printing?: No, Cmp files are not safe for professional printing because compression artifacts degrade fine details, whereas Bmp provides the lossless clarity print shops require.
Is Cmp compatible with all image editing software?: No, Cmp is not compatible with all image editing software because it is a proprietary format, whereas Bmp is a standard Windows format supported by nearly every application.
What is the most common beginner mistake when choosing between Cmp and Bmp?: The most common beginner mistake is choosing Cmp for archival work, because its lossy compression permanently discards image data that Bmp would retain.
Can Cmp and Bmp files be used interchangeably in web design?: No, Cmp and Bmp files cannot be used interchangeably in web design because Bmp files are too large for fast loading, whereas Cmp offers practical web-friendly sizes.
Which format, Cmp or Bmp, is used for medical imaging scans?: Bmp is used for medical imaging scans because its lossless format preserves diagnostic detail, whereas Cmp compression could hide subtle anomalies in the image.
Can I switch a Bmp file to Cmp without losing any original data?: No, you cannot switch a Bmp file to Cmp without losing original data because the conversion process discards visual information permanently to achieve compression.