Dragon UnPACKer is a game archive (Quake PAK, etc..) unpacking tool. It is plugin based making easier to add new archive file formats. It has convert ability and raw search function for known material (audio, video and pictures).
Linux Audio Converter / Tagger / CD Ripper
A Linux CLI tool for converting multiple audio types from one format to another. It supports the following audio formats: 3G2, 3GP, 8SVX, AAC, AC3, ADTS, AIFF, AL, AMB, AMR, APE, AU, AVR, BONK, CAF, CDR, CVU, DAT, DTS, DVMS, F32, F64, FAP, FLA, FLAC, FSSD, GSRT, HCOM, IMA, IRCAM, LA, MAT, AUD, MAT4, MAT5, M4A, M4R, MP2, MP3, MP4, MP4A, MPC, MPP, NIST, OFF, OFR, OFS, OPUS, OGA,OGG, PAF, PRC, PVF, RA, RAM, RAW, RF64, SD2, SF, SHN, SMP, SND,SOU, SPX, SRN, TAK, TTA, TXW, VOC, VMS, VQF, W64, WAV, WMA, and WV. It can also extract audio from the following video extensions: RM, RV, ASF, DivX, MPG, MKV, MPEG, AVI, MOV, OGM, OGV, QT, VCD, SVCD, M4V, NSV, NUV, PSP, SMK, VOB, FLV, WEBM and WMV. Parallel Processing, a CD ripping function with CDDB support, batch conversion, tag preservation for most supported formats, independent tag reading & writing, service menus for KDE Dolphin/Konqueror, Gnome Nautilus script, and action scripts for Nemo/Thunar are also provided.
Sweep is an audio editor and live playback tool. It supports PCM (WAV, AIFF etc.), Ogg Vorbis, Speex and MP3, with multichannel editing and LADSPA effects. Inside lives a pesky little virtual stylus called Scrubby who enjoys mixing around in your file
Audio converter for GNOME
Gnac (GNome Audio Converter) is an easy to use audio conversion program. It is designed to be easy and powerful. It provides easy audio files conversion between all GStreamer supported audio formats.
The best converter tool for Windows.
Can handle MPEG1/2/2.5 layer 1/2/3 audio files and ID3v1/2 TAGs. Intended to automatize redundant operations on MP3 files and TAGs (ie renaming file, automated tag-filling and some other usefull features).
GUI which use 'ffmpeg', 'mencoder' and 'mkvmerge' to convert, compress and merge any video or audio format, including DVD. It is also possible to add audio track on movies. Multi platform, it works on Mac OS X (ppc and i386), Linux and Windows
ViewOn.tv is a Media Player that support audio, video and Internet radios. Play your music from your PC, DVD/CD or from your iPod/iPhone. It offers great ways to manage your music library, to create playlist, to copy and burn CDs.