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bchunk
What it is
bchunk is a free command-line utility for Linux and macOS that converts CD image data into ISO images and CDR tracks. It requires a .bin image, a .cue index containing track types and offsets, and an output basename. The -w option writes audio tracks as WAV files, while -s swaps byte order in audio samples. For MODE2/2352 material, -p handles PlayStation-style output by writing 2336 bytes from offset zero; -r writes raw 2352-byte data from that offset. The README identifies binchunker as version 1.2.2 and documents building with make followed by make install. Its changelog records fixes for a heap-based buffer overflow and a null-access crash caused by malformed CUE files. bchunk is released under the GNU GPL version 2 or any later version chosen by the user. The GitHub releases page lists no repository releases.
For and against
For
- Free under the GNU GPL
- Converts BIN/CUE images to ISO or CDR
- Can write audio tracks as WAV
- Offers PSX and raw MODE2 options
- Runs on Linux and macOS
Against
- Requires both .bin and .cue input files
- Command-line utility needs source-style installation
- GitHub lists no repository releases
- No Windows platform is listed
The verdict
bchunk provides focused CD-image conversion with options for audio extraction and MODE2 formats. It is a source-built command-line program rather than a graphical application, with version 1.2.2 identified in its README.
Who it suits
bchunk suits Linux or macOS users comfortable with command-line conversion of BIN/CUE or related CD image files. It is useful when WAV output or MODE2 handling is needed.
Plans and prices
bchunk
Command-line utility · requires a .bin image and .cue track index
Read 9 Oct 2026 · github.com
On the record
- Audio byte order
- The -s option swaps byte order in audio track samples.github.com · read 9 Oct 2026
- Audio output
- The -w option writes audio tracks in WAV format.github.com · read 9 Oct 2026
- Build and install
- The README describes building from source with make and installing with make install.github.com · read 9 Oct 2026
- Input requirements
- The command takes an image .bin file, a .cue index file containing track types and offsets, and an output basename.github.com · read 9 Oct 2026
- Latest version noted
- The README identifies the program as binchunker version 1.2.2.github.com · read 9 Oct 2026
- License
- The project is released under the GNU General Public License, version 2 or any later version at the user's option.github.com · read 9 Oct 2026
- PlayStation mode
- The -p option handles MODE2/2352 tracks in PSX mode by outputting 2336 bytes from offset 0.github.com · read 9 Oct 2026
- Purpose
- bchunk converts CD images in .bin/.cue format to .iso and .cdr tracks.github.com · read 9 Oct 2026
- Raw mode
- The -r option outputs MODE2/2352 tracks in raw format, from offset 0 for 2352 bytes.github.com · read 9 Oct 2026
- Release downloads
- The GitHub releases page states that there are no releases for this repository.github.com · read 9 Oct 2026
- Security fix history
- The changelog says version 1.2.2 fixed CVE-2017-15953, a heap-based buffer overflow, and CVE-2017-15955, a null access violation and crash on malformed CUE files.github.com · read 9 Oct 2026
