What are the settings of the sequence you are working in? What is the format of the original source footage you are trying to render? Does this happen no matter what files you are trying to render? Where are the source files located (internal, external, usb, firewire, etc?)? How much space is left on that hard drive? Where is your render folder? What version of Quicktime are you running? How much space is left on that drive? Do you have read/write permission on your render folder? Have you tried resetting your render folder to a different drive or directory?
These are just the initial questions I think we’d need answers to to start trying to troubleshoot. Obviously that’s a lot I’m asking but if you answer and try different things whatever is causing the problem might present itself.
Hope we can help.
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Paul Escandon
Producer | Director | Editor
Apple Certified Trainer – Final Cut Pro
Oremus Productions
http://www.oremusproductions.com
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Adjunct Professor of Media
John Paul the Great Catholic University