I've got over 100 1280 x 720 HD MOV files to edit in 16 or more video stacks, so I built a brand new system just to run Premiere CS6. It's an i7 with 16gb RAM and a GeFroce 660 card with 2gb DDR5 RAM. Windows 7 Pro. All video and cache files are on an SSD. I've got the MPE enabled and was still seeing terrible stuttering. Then I found a post that said to rename the MOV files to MPG and that would do the trick. Guess what... IT DID!
Now the thing that struck me as very odd was when I first tried to import the MOV files, I got error msgs that they were unsupported media. How could Adobe not support MOV files natively, or supply the proper codec. Instead, I had to search Google to find out I had to install QT before the files would even import, let alone play. Then the poor performance with this super system. It would seem that the problem is the QT codec that doens't work with Premiere. I read in one post that the QT codec is 32 bit while Premiere is 64 bit. Still, there's no excuse for not supporting QT natively with an Adobe 64-bit engine. I was begining to think that I'd spent all that money for naught.
Does anyone from Adobe have an answer for this?