3ivx D4 is a MPEG-4 toolkit that supports MPEG-4 Video, MPEG-4 Audio and the MP4 File Format
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.

Why should I install 3ivx?
The 3ivx decoder plays back most MPEG-4 files (including MP4, M4A, 3GP and MOV files) with MPEG-4 AAC Audio and MPEG-4 Video (such as DivX 5, 4 and 3, Philips MPEG-4, Apple MPEG-4 and XviD) using
Windows Media Player or other compatible players.
The Audio Decoder can play back MPEG-4 Multi-Channel High Efficiency AAC including audio encoded by Nero AAC and iTunes.

The 3ivx encoder produces industry-leading compact high quality MPEG-4 Audio and Video and is distributed as a plug-in for QuickTime as well as plug-ins for Video for Windows and DirectShow.
This allows you to encode MPEG-4 Audio and Video in AVI, MOV or MP4 files with the encoding application of your choice.

Because of its core design and optimization the 3ivx codec maintains a record-breaking speed.

3ivx MPEG-4 for Windows includes

- 3ivx DirectShow MPEG-4 Video Decoder
- 3ivx DirectShow MPEG-4 Video Encoder
- 3ivx DirectShow MPEG-4 Audio Decoder
- 3ivx DirectShow MPEG-4 Audio Encoder
- 3ivx DirectShow Media Splitter
- 3ivx DirectShow Media Muxer
- 3ivx Video for Windows (VfW) codec
- 3ivx QuickTime MPEG-4 Video codec