3ivx is an MPEG-4 toolkit that supports MPEG-4 Video, MPEG-4 Audio and the MP4 file format. 3ivx D4 4.5 allows video and audio to be compressed to a fraction of its original size while maintaining high image quality.

You can store over 2 hours of near DVD quality audio and video on a single CD-ROM or stream near DVD quality video over a cable modem or DSL modem.

The Pro edition is for professionals who want to prepare and distribute MPEG-4 Audio and Video for commercial display on or via the web. The Pro edition includes 6 seperate filters.