> OK, not a biggie, so export to m4a from QT Player. Don't even need to do that, just change the file name suffix from .mp4 to .m4a And in the Finder, right-c

> OK, not a biggie, so export to m4a from QT Player. Don't even need to do that, just change the file name suffix from .mp4 to .m4a And in the Finder, right-clicking on a file gives a submenu "Open with..." where you can choose the application that will open it.