Pack of tools for converting audio and video files.
Software that easily converts videos into animated GIFs.
Convert audio CDs to MP3.
Program that extracts audio from DVDs, VCDs, SVCDs, MPEG-1 and MPEG-2 and converts them to MP3.

Super complete video converter, easy to use and the best: it's free.
Convert audio files to/from WAV, MP3, WMA and OGG formats.