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Adding Transitions freezes and stutters playback in Preview.

I'm posting this as a new issue. Since I've narrowed down my "stuttering/freezing on playback" problem while in Preview/Edit mode.

This begins to happen as SOON as I add a transition. Whether I add it automatically, or manually.

The clips play fine without transitions in the project and the Event window. These are clips from a Kodak Zi6, I believe shot HD at 60fps, and I'm using NTSC 30fps to create the project. When I "get info" on my clips, the codecs listed are H.264 and AAC, dimensions 1280x720.

When the Movie Project is exported & viewed in QuickTime, it plays smoothly.

Any ideas are greatly appreciated, as I'd like to preview my work as I go!
This movie is LESS than one minute long!

IMac 3.06 4GG, 1TB, Mac OS X (10.5.6), Kodak Zi6, Casio EXZ850

Posted on Mar 24, 2009 7:56 AM

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Adding Transitions freezes and stutters playback in Preview.

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