I am surprised you can get a 4.21 trial version and even more that it let's you edit MPEG based material.
I got the CS4 version from Adobe itself. The .mov files would not work right out of the box. The video was very choppy. I when to the help menu and selected Updates and viola there were fixes. I updated them and the files played nicely within Premiere. However when I went to export to H.264 Blu-ray the file as not workable. Just today I pressed the updates button a the Hot Fix (4.2.1) was available. But this did not work either. I only have 15 days left until it expires. I want to make sure that I can use this editing software for all my project. The Canon 7d Camera is awesome. The video is stunning.
On a side note, your "high horsepower system" does not meet minimum requirements. A single mirrored disk is not enough. You need at least three physical disks and with 7D material better count on a raid configuration.
The Canon 7d Uses using AVCHD H.264 as its native format
Yeah that is my slowest component, but that would not be the reason for the corrupted file. That would only explain the amount of time it takes to render. I am not concerned about that at this moment. I do not do professional work. This is more for something that I would use on a monthly basis.
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And AVCHD is MPEG based, MP4 to be exact. And MPEG in whatever format is not supported in the trial version. So that may be your problem.
I kind of thought about that. Although it is strange that it "leads" you down that path via
1. having the option to do so
2. actually putting you through an 8 hour export rendering process (for a 2 hour series of clips) and
3. producing a file that looks rather large.
Other portions of the CS4 suite like Adobe Encore says you cannot use it in trial mode.
If this is the case, I would like to get some confirmation that Canon 7d .mov files will work before I shell out over 1K for the CS4 suite (especially is CS5 is most likely several months away...I could hunker down and wait)