Apple has released QuickTime Player 7.6.6 for Mac OS X 10.6.3 Snow Leopard with absolutely no release notes, so there's no telling what has changed. Remember that Snow Leopard now comes with a new QuickTime Player for QuickTime X, so the only reason you would want QuickTime Player 7 is because it 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. Apple explains more at this Knowledge Base article. (Free, 10.65 MB)
Option-Click in Scroll Bars for Jump Scrolling
In Mac OS X in general, and thus in most native Mac OS X applications, hold down the Option key and click anywhere in a window's scroll bar to jump to that spot (rather than scrolling one screen). If you like this behavior, you can make it the default in the Appearance preference pane. For "Click in the scroll bar to:" select "Jump to here."
QuickTime Player 7.6.6 for Mac OS X 10.6.3
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