Version History of QuickTime Player 4.0
- Graphics exporter components, which could write some of the same formats that the previously-introduced importers could read. (GIF support was omitted, possibly because of the LZW patent.)
- Support for the QDesign Music 2 and MPEG-1 Layer 3 audio (MP3)
- QuickTime 4 was the first version to support streaming. It was accompanied by the release of the free QuickTime Streaming Server version 1.0.