thank you, and I did try this, to find it addressed my original problem, but, I found that there were "glitches" in the audio, sounding as though it's having a problem processing the audio within MS7. I tried running the track both from a standard disk drive and a solid state drive, and there was no difference. I also ran the same track in a media player instance as I was advancing slides in MS7, and the track played fine, with no glitches. The system is an I7, with no other apparent processing problems.