a few days ago I posted a topic re opening mpg files without problem in VPro9, working with them, closing the computer down and then coming back to them later and not being able to open the same files. I then checked with VPro8 and was able to open them without problem returned to Pro9 and no further problem. However, the same thing has occurred and the only error message details are: mpg files could not be opened. The strange thing is they were opened a moment ago? Any support, advice would be greatly appreciated.