I have a video that fails to play in the QuickTime plugin in Internet Explorer on Windows 7, but it plays fine in the standalone QuickTime player. I suspect that this may be an encoding problem, and I wanted to ask the experts. I did not personally encode this video, but I am assigned to troubleshoot the problem. If it is, in fact, an encoding problem, I would like to be able to point to specific evidence.
A file that works (if it helps): https://ptgmedia.pearsoncmg.com/digital/video/9780321765147/9780321765147_01.mp4