Apple has quietly posted QuickTime 6.5.1, an incrememtal update to the company’s multimedia software. Version 6.5.1 offers “many important updates, including: Apple Lossless Encoder, a new lossless audio codec that retains the full quality of uncompressed CD audio while requiring only about half the storage space; significant improvements to AAC encoding, resulting in high-quality sound over a full range of audio frequencies; enhanced and support for iTunes 4.5 and other QuickTime-based applications.” [Thanks to David Lunt for this news tip.