Snake Doctor

Any Vegas gurus out there willing to give me some advice?

I'm trying to chop up clips for a gallery. My source file is a wmv 366kbps.

I import it to vegas, slide the timer to which part I want, trim it, and then render it as a new clip.
I've been doing it this way for quite some time.

On this particular video however, my new clips end up looking like they were shot in a disco. I keep getting these black flashes on the screen during the whole clip.

Has this ever happened to you before? And how did you fix it?

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