Apple today posted QuickTime 6.1 via the Mac OS X software update control panel, which Apple says delivers a number of quality and performance enhancements for audio, video, and full screen playback. Enhancements include the following:
• MPEG-4 video provides more accurate rate control and improved visual quality.
• AAC includes new encoder controls and new bit rate options.
• DV includes significant encode and decode performance improvements.
• QuickTime Pro users will enjoy enhancements in full screen playback, including newly enabled keyboard shortcuts for movie control, faster entry and exit, and improved playback performance.