m9u is a music server, similar to mpd or xmms2. It sits in the background, waiting for commands to be delivered via a 9p file system. m9u embraces the Unix philosophy of doing one thing well. As such, it does not try to catalog or otherwise organize music, but aims for the more humble goal of simply playing it. A side effect of this approach is that m9u is trivially extensible to domains aside from music (for example, an image slideshow).
Freedup finds and eliminates duplicate files by linking them, and thus reduces the amount of used disk space within one or more file systems. By default, hardlinks are used on a single device, symbolic links when the devices differ. A set of options allows you to modify the methods of file comparison, the hash functions, the linking behavior, and the reporting style. You may use batch or interactive mode. Freedup usually only considers identical files, but when comparing audio or graphics files, you may elect to ignore the tags.
CDfs is a file system for Linux systems that `exports' all tracks and boot images on a CD as normal files. These files can then be mounted (e.g. for ISO and boot images), copied, played (audio tracks), etc. The primary goal for developing this file system was to `unlock' information in old ISO sessions. The file system also allows you to access data on faulty multi session disks, e.g. disks with multiple single sessions instead of a multi session.
MP3FS is a read-only FUSE filesystem that transcodes FLAC audio files to MP3 on the fly when opened and read. It is useful to enable the use of your FLAC collection with software and/or hardware that only understands MP3s. It is also a novel alternative to traditional MP3 encoder applications. Just use your favorite file browser to select the files you want encoded, and copy them somewhere.
fdmsfs is a FUSE filesystem which can read fostex FDMS-3 volumes. When mounted, the songs (programs) appear as directories and the tracks appear as WAVE files within those directories. This allows songs to be played or mixed-down directly off the disk (e.g. using Audacity). Supported devices: FD-4, FD-8, VF160, and D2424.
MediaSort is a tool that automatically renames media files with metadata attributes. For example, you can sort your pictures by date, camera model, or other EXIF attributes, and your MP3s by author, album, or other ID3 tag values. MediaSort is also a "sorting" Ant FileMapper that can be used with any other Ant tasks to achieve more complex work.