bchunk
bchunk is a free command-line utility for converting CD images in BIN/CUE format into ISO images and CDR tracks.
What bchunk is
bchunk is a free command-line utility for converting CD images in BIN/CUE format into ISO images and CDR tracks. It takes a .bin image, a .cue index with track types and offsets, and an output basename. The -w option writes audio tracks as WAV files, while -s swaps the byte order in audio samples. For MODE2/2352 tracks, -p selects PSX mode and outputs 2336 bytes from offset zero; -r instead writes raw data from offset zero for 2352 bytes. The README identifies the program as binchunker version 1.2.2 and describes building from source with make and installing with make install. The changelog for that version records fixes for a heap-based buffer overflow and a crash involving malformed CUE files. bchunk is listed for Linux and macOS and is released under the GNU General Public License, version 2 or a later version selected by the user. The repository's GitHub releases page lists no releases.
Good
- Converts BIN/CUE images to ISO and CDR tracks
- Can write audio tracks as WAV
- Includes options for PSX and raw MODE2/2352 output
- Free under the GNU GPL
Watch out
- Requires both a .bin image and .cue index
- Build and installation instructions use make
- Repository lists no releases
Who it suits
bchunk suits Linux and macOS users who are comfortable with command-line tools and need to convert CD image tracks from BIN/CUE inputs.
Verdict
bchunk provides a focused command-line route from BIN/CUE images to ISO or CDR tracks, with options for audio and MODE2/2352 output. It may fit users comfortable building and installing software from source.
Plans and prices
From bchunk's own pricing page, checked 9 Oct 2026.
| Plan | Price | What it gives you |
|---|---|---|
| bchunk | Free | Command-line utility · requires a .bin image and .cue track index · Free software under the GNU GPL, version 2 or later |
The facts
Each one read from bchunk's own pages, with the date it was checked.
What it does
- Audio byte order
- The -s option swaps byte order in audio track samples.checked 9 Oct 2026
- Audio output
- The -w option writes audio tracks in WAV format.checked 9 Oct 2026
- Build and install
- The README describes building from source with make and installing with make install.checked 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.checked 9 Oct 2026
- Latest version noted
- The README identifies the program as binchunker version 1.2.2.checked 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.checked 9 Oct 2026
- PlayStation mode
- The -p option handles MODE2/2352 tracks in PSX mode by outputting 2336 bytes from offset 0.checked 9 Oct 2026
- Purpose
- bchunk converts CD images in .bin/.cue format to .iso and .cdr tracks.checked 9 Oct 2026
- Raw mode
- The -r option outputs MODE2/2352 tracks in raw format, from offset 0 for 2352 bytes.checked 9 Oct 2026
- Release downloads
- The GitHub releases page states that there are no releases for this repository.checked 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.checked 9 Oct 2026
Where it runs
- Platforms
- The README lists successful compilation on Linux, Solaris, Digital Unix, SGI IRIX, and Mac OS X, and says it should compile on any decent ANSI C system.checked 9 Oct 2026
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