aTunes is a powerful, full-featured, cross-platform mp3 / ogg player and manager, with audio cd rip frontend
A fast multi-track audio editor and recorder for Linux, BSD, Mac OS, and Windows. Supports WAV, AIFF, Ogg, and MP3 formats. Features include envelope editing, mixing, built-in effects and plug-ins, all with unlimited undo.
Audio & video encoder. It uses lame to encode wav to mp3 or convert mp3 to mp3 with new bitrate. In future it will also encoding video using DivX and Xvid and ac3 to mp3 or wav. Graphic interface.
CDex is a CD-Ripper, extracting digital audio data from an Audio CD. The application supports many Audio encoders, like MPEG (MP2,MP3), VQF, AAC encoders.
Celestia is real-time 3D space simulation which lets you travel through our solar system and to over 100,000 stars in our neighborhood.
CoreMP3 is a program used for organizing and maintaining your MP3 Music collection. CoreMP3 currently has an MP3 Renamer, and MP3 Organizer and a Tag Editor. This program is written Java so it is available on all operating systems
DVD Flick aims to be a tool to convert various PC video formats to a DVD that can be played on pretty much any standalone DVD player. It's main target audience is people who know at least the basics about DVDs and videoaudio files.
ffdshow is DirectShow and VFW codec for decoding/encoding many video and audio formats, including DivX and XviD movies using libavcodec, xvid and other opensourced libraries with a rich set of postprocessing filters.
FreeImage is a library project for developers who would like to support popular graphics image formats (PNG, JPEG, TIFF, BMP and others). Some highlights are: extremely simple in use, not limited to the local PC (unique FreeImageIO) and Plugin driven!
Gaim is a GTK+ instant messaging application. It supports multiple protocols, including AIM, ICQ, Yahoo!, MSN, Jabber, IRC, Napster, Gadu-Gadu, Zephyr, and SILC. It has many common features found in other clients, as well as many unique features