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Verified PS2 CHD ROMs: A Comprehensive Review

The PlayStation 2 (PS2) is one of the most iconic consoles of all time, with a vast library of games that have become classics. For enthusiasts and collectors, accessing these games can be a challenge, especially for those who prefer digital copies. One solution is PS2 CHD ROMs, which offer a way to play PS2 games on various devices through emulation. In this review, we'll explore verified PS2 CHD ROMs, their benefits, and what you need to know before diving in.

What are PS2 CHD ROMs?

CHD (Compressed Hard Disk) is a file format used for storing and compressing data, similar to ZIP or RAR. For PS2 games, CHD ROMs are essentially game data stored in this compressed format, allowing for efficient storage and loading. This format is particularly popular among enthusiasts and developers because it enables fast loading times and reduced storage requirements.

Benefits of Verified PS2 CHD ROMs

  1. Accuracy and Authenticity: Verified PS2 CHD ROMs ensure that you're getting a game that has been checked for accuracy and authenticity. This means the game data has been confirmed to be a true copy of the original game, without any alterations or corruptions.

  2. Compression Efficiency: The CHD format significantly reduces the file size of PS2 games, making them easier to store and share. This is particularly beneficial for users with limited storage space.

  3. Wide Compatibility: Many emulators and devices support CHD files, offering flexibility in how and where you can play your PS2 games.

  4. Community Support: The process of verification often involves community efforts, where enthusiasts and developers work together to ensure the quality and authenticity of the ROMs. This fosters a sense of trust and reliability within the community.

What to Consider Before Using PS2 CHD ROMs

  1. Legality and Ownership: It's crucial to understand the legal implications of using ROMs. While the concept of ROMs can be complex, generally, using ROMs of games you own can be considered legal, but distributing copyrighted material without permission is not.

  2. Emulator Compatibility: Not all emulators support CHD files or PS2 games. Ensure that your chosen emulator can handle CHD ROMs and offers good performance and compatibility with your games.

  3. Source Trustworthiness: When downloading verified PS2 CHD ROMs, it's essential to use reputable sources. This ensures you're getting verified and safe files, free from malware or corrupted data.

  4. BIOS and Game Compatibility: Some PS2 emulators require specific BIOS files to function correctly. Additionally, not all games are compatible with every emulator. Be prepared to do some trial and error to find the right combination for your games.

Conclusion

Verified PS2 CHD ROMs offer a fantastic way for gamers and collectors to enjoy their favorite PS2 games through emulation, providing a balance of authenticity, efficiency, and compatibility. However, it's essential to approach this with an understanding of the legal and technical considerations. For those willing to navigate these aspects, verified PS2 CHD ROMs can breathe new life into classic games, making them accessible on modern devices.

Rating: 4.5/5

The rating reflects the overall benefits and considerations of using verified PS2 CHD ROMs. While there are significant advantages, the legal and technical aspects may deter some users. For enthusiasts and those well-versed in emulation, verified PS2 CHD ROMs are an excellent choice.

In the PlayStation 2 (PS2) emulation and preservation community, "verified" CHD ROMs typically refer to disc images that have been compressed into the Compressed Hunks of Data (CHD) format while maintaining a perfect match with Redump.org database standards. Core Benefits of PS2 CHDs Lossless Compression : CHD is a lossless format originally created for

that significantly reduces file size without losing any original disc data. Single File Management : Unlike the ps2 chd roms verified

format, which uses multiple files for multi-track discs, CHD consolidates everything into a single Emulator Support : Most modern PS2 emulators, including

, natively support CHD, allowing games to be played directly without decompression. Verification & Redump Standards

To ensure a PS2 CHD is "verified," it must be created from a Redump-verified ISO

. Redump is a group that provides "hashes" (unique digital fingerprints) for games to confirm they are 1:1 copies of the original retail discs. Verified Sets

: Community members often share "Redump CHD Sets," which are libraries where every game has been converted and checked against Redump hashes to ensure zero data corruption. Verifying Your Own : Tools like

(part of the MAME suite) can be used to convert your own ISOs. For automated verification, some community-created scripts can check a directory of CHDs against Redump files to confirm their integrity. Tools for PS2 CHD Management Primary Purpose chdman (MAME)

The standard command-line utility for creating and extracting CHD files.

A popular graphical user interface (GUI) that makes bulk conversion to CHD easier for Windows users.

The leading PS2 emulator that allows direct playback of verified CHD files. step-by-step guide on how to convert your own PS2 ISOs into verified CHDs?

ps2 redump usa chd part I : Free Download, Borrow, and Streaming

DOWNLOAD OPTIONS * 3.5G. In the Groove (USA).chd download. * 1.6G. Incredible Hulk, The - Ultimate Destruction (USA).chd download. Internet Archive CHDMAN - Recalbox Wiki

1. PCSX2 (The Gold Standard)

The Qt build of PCSX2 has fully integrated CHD support. Verified CHDs load faster than ISOs because the decompression is optimized for multi-threading. Result: Less stutter in open-world games like GTA: Vice City.

Where to Find Verified PS2 CHD ROMs (Legally)

This section requires careful navigation. We do not endorse piracy. However, understanding where verified sets live helps you avoid malware.

The Legal Route: If you own the original discs, you can rip them to ISO using Imgburn and then convert to CHD yourself. This is the only 100% legal, 100% verified method.

The Archival Route: The "Internet Archive" hosts Redump sets for educational purposes. You can find "PS2 Redump CHD Verified" packs there. Check your local copyright laws before downloading.

What to look for:

  • A file named PS2_Redump_Verified_CHD_(2025).dat
  • Checksum files (MD5/SHA-1) included in the download.

Avoid sites that list "ISO" and "CHD" as separate downloads; they are usually recompressed bad dumps.

5. Pre-verified sets (community trusted)

  • No-Intro / Redump CHD packs (common in archive.org collections)
  • Verified via .dat files & rebuild tools like clrmamepro or RomVault.

Part 5: How to Convert Your Own ISOs to Verified CHDs

If you have a collection of Redump-verified ISOs (or your own retail disc dumps), converting them to CHD is straightforward and safe.

Warning: Do not convert unknown/bad ISOs. Garbage in, garbage out. First verify your ISO source using a Redump DAT and md5sum. Only then, convert. Verified PS2 CHD ROMs: A Comprehensive Review The

Windows/Mac/Linux Script:

  1. Place chdman in your working directory.
  2. Run the following loop (Windows batch example): 
    for /r %%i in (*.iso, *.bin, *.img) do chdman createcd -i "%%i" -o "%%~ni.chd"
  3. After conversion, re-verify: Run the chdman verify command on the new CHD.

Result: You now have a verified PS2 CHD ROM that is bit-for-bit accurate to the original disc, but 30-50% smaller.

8. Best Practice for “Verified” PS2 CHDs

  1. Start with Redump-verified ISO/BIN/CUE.
  2. Convert with chdman using zstd compression.
  3. Run chdman verify on the result.
  4. Test in PCSX2 nightly – play for 10 minutes.
  5. Keep the original hash log from the source.

If all steps pass, your CHD is verified in both data integrity and emulator compatibility.

Using verified PS2 CHD ROMs is the gold standard for modern PlayStation 2 emulation, offering a perfect balance between high-fidelity preservation and massive storage savings. Whether you are building a library for PCSX2 on a PC or a handheld device like the Steam Deck, understanding the CHD format is essential. What are PS2 CHD ROMs?

CHD stands for Compressed Hunks of Data. Originally developed for the MAME arcade emulator, it has become the preferred format for disc-based console ROMs. Unlike standard .ISO or .BIN/CUE files, which are uncompressed images of the original game disc, a CHD file uses lossless compression to reduce the file size by 30% to 60% without losing a single bit of data. Why Use "Verified" CHD ROMs?

In the world of emulation, a "verified" ROM typically refers to one that matches the Redump database. Redump is a community project that catalogs perfect, error-free "dumps" of original game discs.

In the world of PlayStation 2 (PS2) emulation, (Compressed Hunks of Data) is the gold standard for storage efficiency and data integrity. Unlike standard ISO files, CHD uses lossless compression

, meaning you can save up to 40%–50% of your disk space without losing a single bit of original game data. Why "Verified" Matters

A "verified" PS2 CHD is one that has been cross-referenced against the Redump.org

database—a community project dedicated to creating perfect bit-by-bit digital copies of original retail discs.

: Verification ensures your game is a 1:1 match with the original retail release, free from corruption or "bad dumps". Reversibility

: Because the format is lossless, a verified CHD can be converted back into its original ISO or BIN/CUE format at any time to match its original Redump checksum. Compatibility : Most modern emulators like

(Windows/Linux) and mobile emulators now support CHD directly, allowing you to play compressed files without needing to extract them first. Managing Your Collection

If you want to build or verify your own collection, several tools and resources are essential: The Ultimate ROM File Compression Guide - Retro Game Corps 6 Feb 2023 —

This guide explains how to convert your PlayStation 2 (PS2) library to CHD (Compressed Hunks of Data) format, ensuring your ROMs are verified, functional, and space-efficient for emulators like PCSX2. What is a Verified CHD?

A "verified" CHD is a file created from a Redump-certified source image (ISO or BIN/CUE) that remains bit-perfect after compression. The CHD format is the gold standard for PS2 emulation because it supports lossless compression, reducing file sizes by 40–60% without losing data. 1. Prerequisites for a Clean Conversion

To ensure your ROMs are verified, start with high-quality sources:

Redump Source: Use only ISOs that match Redump.org checksums.

chdman.exe: The command-line tool found within the MAME distribution or standalone "CHDMAN" packages. Accuracy and Authenticity : Verified PS2 CHD ROMs

NAMEDump or RomCenter: (Optional) Tools to verify your source ISOs against a DAT file before you begin. 2. How to Convert to CHD

Follow these steps to convert your files while maintaining integrity:

Download CHDMAN: Extract chdman.exe into the folder containing your PS2 ISOs.

Use a Batch Script: Create a new text file in that folder, paste the following code, and save it as convert.bat:

for %%i in (*.iso, *.bin) do chdman createcd -i "%%i" -o "%%~ni.chd" pause Use code with caution. Copied to clipboard

Run the Script: Double-click convert.bat. This process uses LZMA compression to create a lossless clone of your disc. 3. Verification Post-Conversion

To confirm your CHD is "verified" and wasn't corrupted during the process:

Command Check: Run chdman verify -i "filename.chd". If it returns "Verification successful," the file is internally consistent.

PCSX2 Compatibility: Load the file in PCSX2. Modern versions (1.7+) natively support CHD. If the game boots and the "Serial" matches the Redump database, your ROM is verified. 4. Why Use CHD Over ISO or GZ? GZ (Compressed ISO) Size Large (Original) Smallest Integrity Checks Built-in Loading Speed Slow (Decompresses) Fast Lossless Yes Pro-Tips for Verified Sets

Avoid Multi-Track Issues: PS2 games with multiple tracks (common in early CD-based titles) should be converted from .CUE files, not the .BIN files directly, to ensure audio data is preserved.

Metadata: CHD files store the original header information. If you ever need to revert, you can use chdman extractcd to get a bit-perfect ISO back.

Part 1: What is a CHD File? (And Why PS2 Needed It)

Originally developed for the MAME (Multiple Arcade Machine Emulator) project, CHD is a lossless compression algorithm designed to handle CD-ROM, DVD-ROM, and hard disk images. Unlike traditional archival formats (ISO, BIN/CUE, NRG), CHD offers three critical advantages:

  1. Compression: A standard PS2 DVD ISO (4.7GB) compresses down to roughly 700MB–2GB in CHD format. That means a 2TB hard drive can go from holding 400 PS2 games to over 1,200.
  2. Hunk Structure: CHD files are divided into “hunks” (small data blocks). This allows an emulator like PCSX2 or AetherSX2 to load only the data it needs, not the whole file.
  3. Metadata Integrity: The format includes internal checksums that prevent silent corruption.

However, simply having a .chd extension does not guarantee quality.

Step 2: Use chdman (Part of MAME)

chdman is the official tool for creating and verifying CHD files. Open a command prompt/terminal in your MAME folder.

To verify a single CHD of its internal checksum:

chdman verify -i "Game Name.chd"

A successful output shows: CHD verification successful.

To verify against the Redump DAT (The Gold Standard): Use a third-party tool like RomVault, CLRMame Pro, or Romulus. These programs read the Redump DAT and cross-check your CHDs.

RomVault Process:

  1. Load the PS2 Redump DAT.
  2. Point RomVault to your folder of .chd files.
  3. Click "Scan." The tool will report:
    • Green (Verified): Hash matches Redump.
    • Yellow (Unverified): Correct game, different region/version.
    • Red (Bad/Corrupt): The ROM is damaged or a bad dump.
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Verified PS2 CHD ROMs: A Comprehensive Review

The PlayStation 2 (PS2) is one of the most iconic consoles of all time, with a vast library of games that have become classics. For enthusiasts and collectors, accessing these games can be a challenge, especially for those who prefer digital copies. One solution is PS2 CHD ROMs, which offer a way to play PS2 games on various devices through emulation. In this review, we'll explore verified PS2 CHD ROMs, their benefits, and what you need to know before diving in.

What are PS2 CHD ROMs?

CHD (Compressed Hard Disk) is a file format used for storing and compressing data, similar to ZIP or RAR. For PS2 games, CHD ROMs are essentially game data stored in this compressed format, allowing for efficient storage and loading. This format is particularly popular among enthusiasts and developers because it enables fast loading times and reduced storage requirements.

Benefits of Verified PS2 CHD ROMs

  1. Accuracy and Authenticity: Verified PS2 CHD ROMs ensure that you're getting a game that has been checked for accuracy and authenticity. This means the game data has been confirmed to be a true copy of the original game, without any alterations or corruptions.

  2. Compression Efficiency: The CHD format significantly reduces the file size of PS2 games, making them easier to store and share. This is particularly beneficial for users with limited storage space.

  3. Wide Compatibility: Many emulators and devices support CHD files, offering flexibility in how and where you can play your PS2 games.

  4. Community Support: The process of verification often involves community efforts, where enthusiasts and developers work together to ensure the quality and authenticity of the ROMs. This fosters a sense of trust and reliability within the community.

What to Consider Before Using PS2 CHD ROMs

  1. Legality and Ownership: It's crucial to understand the legal implications of using ROMs. While the concept of ROMs can be complex, generally, using ROMs of games you own can be considered legal, but distributing copyrighted material without permission is not.

  2. Emulator Compatibility: Not all emulators support CHD files or PS2 games. Ensure that your chosen emulator can handle CHD ROMs and offers good performance and compatibility with your games.

  3. Source Trustworthiness: When downloading verified PS2 CHD ROMs, it's essential to use reputable sources. This ensures you're getting verified and safe files, free from malware or corrupted data.

  4. BIOS and Game Compatibility: Some PS2 emulators require specific BIOS files to function correctly. Additionally, not all games are compatible with every emulator. Be prepared to do some trial and error to find the right combination for your games.

Conclusion

Verified PS2 CHD ROMs offer a fantastic way for gamers and collectors to enjoy their favorite PS2 games through emulation, providing a balance of authenticity, efficiency, and compatibility. However, it's essential to approach this with an understanding of the legal and technical considerations. For those willing to navigate these aspects, verified PS2 CHD ROMs can breathe new life into classic games, making them accessible on modern devices.

Rating: 4.5/5

The rating reflects the overall benefits and considerations of using verified PS2 CHD ROMs. While there are significant advantages, the legal and technical aspects may deter some users. For enthusiasts and those well-versed in emulation, verified PS2 CHD ROMs are an excellent choice.

In the PlayStation 2 (PS2) emulation and preservation community, "verified" CHD ROMs typically refer to disc images that have been compressed into the Compressed Hunks of Data (CHD) format while maintaining a perfect match with Redump.org database standards. Core Benefits of PS2 CHDs Lossless Compression : CHD is a lossless format originally created for

that significantly reduces file size without losing any original disc data. Single File Management : Unlike the

format, which uses multiple files for multi-track discs, CHD consolidates everything into a single Emulator Support : Most modern PS2 emulators, including

, natively support CHD, allowing games to be played directly without decompression. Verification & Redump Standards

To ensure a PS2 CHD is "verified," it must be created from a Redump-verified ISO

. Redump is a group that provides "hashes" (unique digital fingerprints) for games to confirm they are 1:1 copies of the original retail discs. Verified Sets

: Community members often share "Redump CHD Sets," which are libraries where every game has been converted and checked against Redump hashes to ensure zero data corruption. Verifying Your Own : Tools like

(part of the MAME suite) can be used to convert your own ISOs. For automated verification, some community-created scripts can check a directory of CHDs against Redump files to confirm their integrity. Tools for PS2 CHD Management Primary Purpose chdman (MAME)

The standard command-line utility for creating and extracting CHD files.

A popular graphical user interface (GUI) that makes bulk conversion to CHD easier for Windows users.

The leading PS2 emulator that allows direct playback of verified CHD files. step-by-step guide on how to convert your own PS2 ISOs into verified CHDs?

ps2 redump usa chd part I : Free Download, Borrow, and Streaming

DOWNLOAD OPTIONS * 3.5G. In the Groove (USA).chd download. * 1.6G. Incredible Hulk, The - Ultimate Destruction (USA).chd download. Internet Archive CHDMAN - Recalbox Wiki

1. PCSX2 (The Gold Standard)

The Qt build of PCSX2 has fully integrated CHD support. Verified CHDs load faster than ISOs because the decompression is optimized for multi-threading. Result: Less stutter in open-world games like GTA: Vice City.

Where to Find Verified PS2 CHD ROMs (Legally)

This section requires careful navigation. We do not endorse piracy. However, understanding where verified sets live helps you avoid malware.

The Legal Route: If you own the original discs, you can rip them to ISO using Imgburn and then convert to CHD yourself. This is the only 100% legal, 100% verified method.

The Archival Route: The "Internet Archive" hosts Redump sets for educational purposes. You can find "PS2 Redump CHD Verified" packs there. Check your local copyright laws before downloading.

What to look for:

  • A file named PS2_Redump_Verified_CHD_(2025).dat
  • Checksum files (MD5/SHA-1) included in the download.

Avoid sites that list "ISO" and "CHD" as separate downloads; they are usually recompressed bad dumps.

5. Pre-verified sets (community trusted)

  • No-Intro / Redump CHD packs (common in archive.org collections)
  • Verified via .dat files & rebuild tools like clrmamepro or RomVault.

Part 5: How to Convert Your Own ISOs to Verified CHDs

If you have a collection of Redump-verified ISOs (or your own retail disc dumps), converting them to CHD is straightforward and safe.

Warning: Do not convert unknown/bad ISOs. Garbage in, garbage out. First verify your ISO source using a Redump DAT and md5sum. Only then, convert.

Windows/Mac/Linux Script:

  1. Place chdman in your working directory.
  2. Run the following loop (Windows batch example): 
    for /r %%i in (*.iso, *.bin, *.img) do chdman createcd -i "%%i" -o "%%~ni.chd"
  3. After conversion, re-verify: Run the chdman verify command on the new CHD.

Result: You now have a verified PS2 CHD ROM that is bit-for-bit accurate to the original disc, but 30-50% smaller.

8. Best Practice for “Verified” PS2 CHDs

  1. Start with Redump-verified ISO/BIN/CUE.
  2. Convert with chdman using zstd compression.
  3. Run chdman verify on the result.
  4. Test in PCSX2 nightly – play for 10 minutes.
  5. Keep the original hash log from the source.

If all steps pass, your CHD is verified in both data integrity and emulator compatibility.

Using verified PS2 CHD ROMs is the gold standard for modern PlayStation 2 emulation, offering a perfect balance between high-fidelity preservation and massive storage savings. Whether you are building a library for PCSX2 on a PC or a handheld device like the Steam Deck, understanding the CHD format is essential. What are PS2 CHD ROMs?

CHD stands for Compressed Hunks of Data. Originally developed for the MAME arcade emulator, it has become the preferred format for disc-based console ROMs. Unlike standard .ISO or .BIN/CUE files, which are uncompressed images of the original game disc, a CHD file uses lossless compression to reduce the file size by 30% to 60% without losing a single bit of data. Why Use "Verified" CHD ROMs?

In the world of emulation, a "verified" ROM typically refers to one that matches the Redump database. Redump is a community project that catalogs perfect, error-free "dumps" of original game discs.

In the world of PlayStation 2 (PS2) emulation, (Compressed Hunks of Data) is the gold standard for storage efficiency and data integrity. Unlike standard ISO files, CHD uses lossless compression

, meaning you can save up to 40%–50% of your disk space without losing a single bit of original game data. Why "Verified" Matters

A "verified" PS2 CHD is one that has been cross-referenced against the Redump.org

database—a community project dedicated to creating perfect bit-by-bit digital copies of original retail discs.

: Verification ensures your game is a 1:1 match with the original retail release, free from corruption or "bad dumps". Reversibility

: Because the format is lossless, a verified CHD can be converted back into its original ISO or BIN/CUE format at any time to match its original Redump checksum. Compatibility : Most modern emulators like

(Windows/Linux) and mobile emulators now support CHD directly, allowing you to play compressed files without needing to extract them first. Managing Your Collection

If you want to build or verify your own collection, several tools and resources are essential: The Ultimate ROM File Compression Guide - Retro Game Corps 6 Feb 2023 —

This guide explains how to convert your PlayStation 2 (PS2) library to CHD (Compressed Hunks of Data) format, ensuring your ROMs are verified, functional, and space-efficient for emulators like PCSX2. What is a Verified CHD?

A "verified" CHD is a file created from a Redump-certified source image (ISO or BIN/CUE) that remains bit-perfect after compression. The CHD format is the gold standard for PS2 emulation because it supports lossless compression, reducing file sizes by 40–60% without losing data. 1. Prerequisites for a Clean Conversion

To ensure your ROMs are verified, start with high-quality sources:

Redump Source: Use only ISOs that match Redump.org checksums.

chdman.exe: The command-line tool found within the MAME distribution or standalone "CHDMAN" packages.

NAMEDump or RomCenter: (Optional) Tools to verify your source ISOs against a DAT file before you begin. 2. How to Convert to CHD

Follow these steps to convert your files while maintaining integrity:

Download CHDMAN: Extract chdman.exe into the folder containing your PS2 ISOs.

Use a Batch Script: Create a new text file in that folder, paste the following code, and save it as convert.bat:

for %%i in (*.iso, *.bin) do chdman createcd -i "%%i" -o "%%~ni.chd" pause Use code with caution. Copied to clipboard

Run the Script: Double-click convert.bat. This process uses LZMA compression to create a lossless clone of your disc. 3. Verification Post-Conversion

To confirm your CHD is "verified" and wasn't corrupted during the process:

Command Check: Run chdman verify -i "filename.chd". If it returns "Verification successful," the file is internally consistent.

PCSX2 Compatibility: Load the file in PCSX2. Modern versions (1.7+) natively support CHD. If the game boots and the "Serial" matches the Redump database, your ROM is verified. 4. Why Use CHD Over ISO or GZ? GZ (Compressed ISO) Size Large (Original) Smallest Integrity Checks Built-in Loading Speed Slow (Decompresses) Fast Lossless Yes Pro-Tips for Verified Sets

Avoid Multi-Track Issues: PS2 games with multiple tracks (common in early CD-based titles) should be converted from .CUE files, not the .BIN files directly, to ensure audio data is preserved.

Metadata: CHD files store the original header information. If you ever need to revert, you can use chdman extractcd to get a bit-perfect ISO back.

Part 1: What is a CHD File? (And Why PS2 Needed It)

Originally developed for the MAME (Multiple Arcade Machine Emulator) project, CHD is a lossless compression algorithm designed to handle CD-ROM, DVD-ROM, and hard disk images. Unlike traditional archival formats (ISO, BIN/CUE, NRG), CHD offers three critical advantages:

  1. Compression: A standard PS2 DVD ISO (4.7GB) compresses down to roughly 700MB–2GB in CHD format. That means a 2TB hard drive can go from holding 400 PS2 games to over 1,200.
  2. Hunk Structure: CHD files are divided into “hunks” (small data blocks). This allows an emulator like PCSX2 or AetherSX2 to load only the data it needs, not the whole file.
  3. Metadata Integrity: The format includes internal checksums that prevent silent corruption.

However, simply having a .chd extension does not guarantee quality.

Step 2: Use chdman (Part of MAME)

chdman is the official tool for creating and verifying CHD files. Open a command prompt/terminal in your MAME folder.

To verify a single CHD of its internal checksum:

chdman verify -i "Game Name.chd"

A successful output shows: CHD verification successful.

To verify against the Redump DAT (The Gold Standard): Use a third-party tool like RomVault, CLRMame Pro, or Romulus. These programs read the Redump DAT and cross-check your CHDs.

RomVault Process:

  1. Load the PS2 Redump DAT.
  2. Point RomVault to your folder of .chd files.
  3. Click "Scan." The tool will report:
    • Green (Verified): Hash matches Redump.
    • Yellow (Unverified): Correct game, different region/version.
    • Red (Bad/Corrupt): The ROM is damaged or a bad dump.