Sample DVD Pulse

Hello,

I am an adjunct instructor at a local college in my community and a colleague of mine asked a question that I use to have the answer to because I've run into the problem before, but it's been several years since I've had to deal with it and I don't remember the solution.

The Problem: He had edited a photo slide show using iMovie. When it played back there would be a "Pulse" before and after each transition where the image became very pixelated.

Solutions Tried: Since I don't have access to editing gear right now, I had an old assistant try looking at it using Premier Pro... No change. Tried exporting it as a different format... No change.

I would appreciate any feedback on this issue. We don't have access to editing equipment yet, since our school just approved a video program and nothing has been purchased, so we're limited to the most basic editing software. The aspect ration is 640 X 480 and the photo's have been tried at both 300 dpi and 72 dpi.

Thanks in advance,

Nick