I just imported some new GH3 72 mbps footage and on playback in my FCP 6.03, it's choking up a lot. Plays, but is jumping frames, stuttering etc... I know, I could get a newer version but this one has always worked for me and if I can use it, I will. Is this a question of an incompatibility with my version or is it just not handling the size of the file well. Any guesses? I can certainly speed up my system if it should work with this version.