QT Pro is a nifty and powerful app but here's a warning- Apple will sneak the QT upgrade into the software upgrade panel, and suddenly your authorized version of QT Pro will no longer exist, and you will have to buy whatever version they came up with next. They upgrade QT version numbers way more often than any new features justify, and you will end up having to buy it over and over again for no good reason. That has been my experience with it. Oh, and Quicktime and Digi have completely screwed up Quicktime and ITunes on my system, so that I need to launch ProTools just to listen to ITunes. Lots of other users had this problem as well.