A Windows desktop utility for batch converting various disk image formats to CHD (Compressed Hunks of Data) format and for verifying the integrity of existing CHD files.
Batch Convert to CHD is a Windows application that provides a simple user interface for converting multiple disk image files to the CHD format and verifying existing CHD files. It uses CHDMAN from the MAME project for the actual conversions and verifications, while providing a user-friendly interface for batch processing. The application supports extracting disk images from archives, parallel conversion for improved performance, and comprehensive CHD file verification.
⭐ If you find this tool useful, please give us a Star on GitHub! ⭐
- Batch Processing: Convert multiple files in a single operation with real-time progress tracking
- Multiple Format Support: Handles CD, DVD, GD-ROM, and HDD image formats
- Archive Support: Automatically extracts and processes files from
.zip,.7z, and.rararchives - CSO Decompression: Supports
.cso(Compressed ISO) files with automatic decompression using maxcso - Parallel Processing: Process multiple files simultaneously for faster batch conversion
- Smart File Handling: Sanitizes file names and handles complex file paths safely
- Delete Original Option: Remove source files (including archives and referenced files) after successful conversion
- CHD Integrity Verification: Verify the integrity of existing CHD files using CHDMAN
- Batch Verification: Process multiple CHD files in one operation
- Subfolder Support: Optionally include subfolders in verification scans
- File Organization: Move verified files to success/failed folders for easy organization
- Detailed Reporting: Comprehensive logging of verification results
- Tabbed Interface: Separate tabs for conversion and verification operations
- Real-time Progress: Live progress bars, file counts, and processing statistics
- Write Speed Monitoring: Real-time disk write speed display during operations
- Comprehensive Logging: Detailed timestamped logs with error reporting
- Cancellation Support: Gracefully cancel operations in progress
- Automatic Updates: Checks for new versions on GitHub at startup
- Global Error Reporting: Automatic bug reporting to the developer with comprehensive error details
- Memory Management: Proper resource disposal and cleanup
- Multi-threading: Optimized for modern multicore processors
- CUE+BIN files (CD images with track information)
- ISO files (CD/DVD images)
- CDI files (DiscJuggler CD images)
- GDI files (Dreamcast GD-ROM images)
- TOC files (CD images with table of contents)
- IMG files (Hard disk images)
- RAW files (Raw sector data)
- CSO files (Compressed ISO files - requires maxcso.exe)
- Archive files: ZIP, 7Z, RAR (containing any of the above formats)
- CHD files (Compressed Hunks of Data)—optimized for emulation
- Operating System: Windows 7 or later (64-bit recommended)
- Runtime: .NET 9.0 Runtime
- Dependencies (included with application):
chdman.exe- MAME CHD creation and verification toolmaxcso.exe- CSO decompression utility (optional, for .cso support)7z_x64.dll/7z_x86.dll- 7-Zip libraries for archive extraction
- Download the latest release from the GitHub releases page
- Extract the ZIP file to a folder of your choice
- Ensure all required executables are in the same folder as
BatchConvertToCHD.exe - Run
BatchConvertToCHD.exe
- Select the "Convert to CHD" tab
- Choose Source Folder: Click "Browse" next to "Source Files Folder" to select the folder containing files to convert
- Choose Output Folder: Click "Browse" next to "Output CHD Folder" to select where CHD files will be saved
- Configure Options:
- Check "Delete original files after successful conversion" to remove source files after conversion
- Check "Enable parallel processing" to convert multiple files simultaneously (faster on multicore systems)
- Start Conversion: Click "Start Conversion" to begin the process
- Monitor Progress: View real-time progress, statistics, and detailed logs
- Cancel if Needed: Click "Cancel" to gracefully stop the operation
- Select the "Verify CHD Files" tab
- Choose CHD Folder: Click "Browse" to select the folder containing CHD files to verify
- Configure Options:
- Check "Include subfolders in CHD search" to scan subdirectories
- Check "Move successfully tested CHD files to 'Success' folder" to organize verified files
- Check "Move failed tested CHD files to 'Failed' folder" to separate problematic files
- Start Verification: Click "Start Verification" to begin the process
- Review Results: Check the logs and statistics for verification results
CHD (Compressed Hunks of Data) is a compressed disk image format developed for the MAME project that offers several advantages:
- Efficient Compression: Significantly reduces file sizes compared to raw disk images
- Lossless Storage: Preserves all original data and metadata without quality loss
- Metadata Preservation: Retains important disk information such as track layout and sector data
- Data Integrity: Built-in checksums ensure image validity and detect corruption
- Emulator Compatibility: Native support in MAME and many other emulators
- Multiple Compression: Uses different algorithms optimized for various data types
- Enable Parallel Processing: Use this option when converting multiple files on systems with multiple CPU cores
- SSD Storage: Store temporary files and output on SSD drives for better performance
- Available RAM: Ensure sufficient free RAM when processing large files or using parallel processing
- File Organization: Organize input files in a single folder for efficient batch processing
- Missing Dependencies: Ensure
chdman.exeis present in the application directory - Permissions: Verify read/write permissions for input and output directories
- Disk Space: Ensure sufficient free space in output and temporary directories
- File Locks: Close other applications that might be accessing the files
- The application automatically reports errors to the developer for analysis
- Check the log window for detailed error messages and troubleshooting information
- Review the GitHub issues page for known problems and solutions
- CSO decompression requires
maxcso.exein the application directory - If maxcso.exe is missing, CSO files will be skipped during conversion
- CHDMAN: Uses CHDMAN from the MAME project for CHD operations
- MaxCSO: Integrates maxcso for CSO file decompression
- SevenZipSharp: Uses SevenZipSharp library for archive extraction
- Development: Created by Pure Logic Code
- Website: purelogiccode.com
- GitHub: BatchConvertToCHD Repository
- Issues: Report bugs and request features on GitHub
- Updates: The application automatically checks for updates on startup
⭐ Remember to Star this repository if you find it useful! ⭐
If you like the software, consider donation on purelogiccode.com.