Hello All, I have a CD that accompanies a textbook which gives insightful diagrams and pictures. The problem is that some of the .mov files do not play. I have tried to discover if there is a consistent trend of incompatibility, however this is not the case. I will outline what I have done to combat this problem thus far: Created an image of the disk-did not work Extracted the .mov files that did not work through the program and tried to play them on a number of different media players including Quicktime7, VLC, and DIVX- did not work I am not sure why this is happening, about 3/4 of the .mov files work fine, but the remaining do not work at all. When I open them using Quicktime they bar scrolls, but it does not play either video or sound. If any of you has a suggestion of why this is happening I would very much appreciate your input.