Apple has released QuickTime Player 7.6.6 for Mac OS X 10.6.3. Apple offers no incremental release notes for the update, stating only:
“QuickTime Player 7 supports older media formats, such as QTVR, interactive QuickTime movies, and MIDI files on Snow Leopard. It also accepts QuickTime 7 Pro registration codes, which turn on QuickTime Pro functions.”
The new release is available via Software Update or this download page.