When I compressing or converting some movies, I don't get any sound or I get an "error opening audio file" message - what's up?
The RAD Video Tools uses QuickTime to import compressed sound formats. Make sure you have the latest version of QuickTime from www.apple.com installed with all of the optional components. Since almost all computers have QuickTime installed, this usually means that the optional components are missing. To fix this, redownload QuickTime and choose "custom" installation - then mark all of the optional components and wait for everything to be downloaded and installed.