bchunk is a Unix/C rewrite of the fine BinChunker software for some non-Unix systems. binchunker converts a CD image in a ".bin / .cue" format (sometimes ".raw / .cue") to a set of .iso and .cdr tracks. The bin/cue format is used by some non-Unix cd-writing software, but is not supported on most other cd-writing programs. The .iso track contains an ISO file system, which can be mounted through a vn device on FreeBSD systems, or written on a CD-R using cdrecord. The .cdr tracks are in the native CD audio format. (pcm) They can be either written on a CD-R using cdrecord -audio, or converted to WAV (or any other sound format for that matter) using sox.