Allen Ellis
Well-known member
Just for kicks, can you transcode the footage to DVCProHD for us to see whether that is also choppy on the timeline? I have an i7 2.6Ghz and AVCHD plays back all right, and Windows Media Player loves it (it's fine on my 3 year old laptop), but only in Windows 7... have you updated to at least Premiere 4.1? They addressed major AVCHD playback problems with that patch.