I should add that when I double click on the original video file in Premiere Elements 8 the video does pull up and plays correctly
in the player that PrE8 runs, so it appears not to be a format the PrE8 does not support. At least not for simple playback.
The files were from a Canon HD camcorder, model HF10 I believe.
You're problem could be related to issues with Windows 7 64-bit. It's not a matter of compability. Windows will automatically switch to 32-bit compatibility mode. It's the drivers supporting it -- which may not yet be fully compatible with this program.
I'm not sure what is going on and why the stabilizer isn't working, assuming you've got all of the Windows updates and that you're using the latest version of Quicktime. AVCHD is a very intensive video format to edit, and most people who are able to work with it at all are using quad-core processors with huge loads of RAM. So I'm not sure if this process is just overwhelming your machine or not.
Are you able to otherwise use the program?
I didn't get much of a chance to test other parts of Premiere Elements 8. I know it did lock up rendering the movie clip without any effects at least once.
At this point, I'll see if Nvidia releases updated drivers within my trial period. If Nvidia drivers fix it then fine otherwise I'll re-test when there's an update to Premiere Elements. By the way, I downloaded a competitor's video editor and it worked fine. Well, their anti-shake effect didn't fix the severe shaking in our video but that was expected, but no crashes doing all the rendering.
>otherwise I'll re-test when there's an update to Premiere Elements
PE is rarely updated between version number upgrades... look at Premiere Elements Updates http://www.adobe.com/support/downloads/product.jsp?product=40&platform=Windows
And, once the time limit on the demo expires, you will not be allowed to install it again
Downloaded the latest beta drivers from Nvidia. These were mentioned in another post by an Adobe employee stating they would fix many of the issues for Windows 7 64 bit users.
The first time I ran Premiere Elements 8 the screen went whitewashed and said PrE8 was not responding. I closed the program.
However, when I ran the program again it worked fine. It rendered everything without locking up which it never did before.
I even ran it a 3rd time on another video file and it rendered all the effects fine again without any lockups.
Wonder if Windows 7 automatically kicks in some kind of compatibility mode after the program locked up the first time?
I'll try to get around to doing some more testing but meanwhile it seems like the problems I have been having were at least substantially
cured by a new Nvidia driver. Hopefully Nvidia will make some further improvements and make that driver an official release.
If you have Windows 7 64bit and are running into issues I suggest you definitely try the latest beta Nvidia driver.
Thanks to everyone who posted.