Apple Computer released Tuesday QuickTime 6.5.2 with a number of enhancements.
According to the release notes, version 6.5.2 is "an important release which includes a security update and bug fixes. In addition this release includes enhancements in the Apple Lossless Encoder and AAC codecs, as well as improved support for iTunes and other QuickTime-based applications."
QuickTime 6.5.2 requires Mac OS X version 10.2.8 or higher.