How many disk drives are you using with this Mac laptop? What speed and interface?
An external firewire 400, but I was going to try and buy a FW800 RAID to see if it helps (no ESATA interface I'm afraid). I know I can edit HD in FCP using ProRes 422 and a FW400, which was why I asked about the route of transcoding at this late stage of the edit...
(the timeline never has more than two tracks of video footage, and a single line of graphics overlays [with alpha though, saved using a lossless with alpha quicktime animation codec]).
As additional info, I have also tried the "root" user permissions fix, and also moving the scratch and cache directories to different directories/drives to see if it helps (permissions bugs workaround) my utterly broken preview files problem; no joy.
Thanks for your help.
 G-TECH (robust) or LaCie (cheaper)!
A better external drive interface has not made PP any better to work with. So the question remains: what is the smartest way in PP to take an existing sequence, transcode the files and replace them with the transcodes on the timeline.
My only experience doing this kind of thing is in FCP, where I edited Red One footage with proxies, and used a tool to relink the media with the originals for grading in Color. I'm have no experience of PP before this job, so don't know what the best way to do this is?