If you are staying with FCP 4.5, don't do it. If you want to use QT7, then upgrade your OS to Tiger, then upgrade FCP to v. 5. regards, sb On 9/16/05 7:55 PM, "Frank Fitzpatrick" <ffitzpatrick at cox.net> wrote: > Does anyone know if QuickTime 7 is compatible with Final Cut Pro 4.5? > I've been hesitating to update QT from version 6. I don't care about > having to pay for the Pro version for QT7 again, I'm just concerned > with whether QT7 will mess things up. I'm using OS 10.3.9. > Thanks for any help. > Frank Fitzpatrick