Ok say I have a file on my desktop called frog.mpg….its 20 minutes long. I import it into vegas, I cut it down in the timeline to 8 seconds, then resave it as frog1.mpg. Now with WMM, if i do that, then delete the original 20 minute file (frog.mpg), then when I go back into WMM to play it it says can not find source file.If I do this in vegas then delete the source file (frog.mpg), then will it search for the source file? Or will it play it?