mpegToaster 2.0b1 (by John Hornkvist)
mpegToaster is a high performance mpeg audio player; from what users tell, it's by far the fastest player on Mac OS X.

VLC Media Player 0.8.6a (by VideoLAN Project)
VLC (initially VideoLAN Client) is a highly portable multimedia player for various audio and video formats (MPEG-1, MPEG-2, MPEG-4, DivX, mp3, ogg, .

MPEG Audio Player 1.74 (by Oliver Dreer)
MPEG Audio Player is a realtime MPEG audio files player for Power Macintosh

It can play mpeg file thanks to the MPEG Audio Layer I, II, and III Decoder.

mpap 2b1 (by Rebisoft, Inc)
mpap is a MPEG Audio Player used for playing "mp3" files.

Drop MPEG here... X 1.0 (by Florent Benech)
Drop MPEG here.

VCDGearX 1.77 (by Werner Bauer)
VCDGearX is a tool for handling MPEG-1 and MPEG-2 file formats.

DivX for Mac OS X 6.0.2 (by DivXNetworks, Inc.)
DivX is a package that includes all the DivX codec, player, utilities, and documentation that you need to play DivX files.

MPEG Streamclip 1.8 (by Squared 5)
MPEG Streamclip converts QuickTime movies, MPEG-1/2/4 files and transport streams into several formats; for MPEG-2 playback and export, the QuickTime MPEG-2 Playback Component is required.

DropDV 2.0.13 (by DropDV Software)
DropDV is a Mac OS X droplet which converts MPEG video into DV video streams.

MPegger Drop Decoder 2.0.1 (by Proteron Software)
MPegger Drop Decodercan automatically convert any MPEG-1 or MPEG-2 LSF layer 1, layer 2 or layer 3 audio file into an AIFF file, Sound Designer II file, or PeeCee Wave file.

SlimServer 6.5.0 (by Slim Devices, Inc.)
Slim Devices introduces SlimServer 6.

NoteAbilityPro 2.319 (by Keith Hamel)
NoteAbility Pro is a professional music notation package for the Macintosh OS-X operating system.

netTunes 2.3.1 (by Shirt Pocket)
netTunes lets you control iTunes running on one Macintosh from another, using iTunes' native interface.

v.m.k 1.6 (by Fredrik Olofsson Musikproduktion)
This application lets you simulate a midi keyboard on your computer keyboard.

Audio Hijack 2.2.5 (by Rogue Amoeba)
Audio Hijack gives all your audio that extra bit of sweetness.