Today I uploaded two videos and patiently waited as they were queued up for conversion. Once the conversion finished and the videos showed up in the recent content, I tried to test them both, but neither would play. I've tried Chrome, Firefox and IE to no avail. In IE, I do get a message near the bottom of the window that says "(1 item remaining)" and it appears to be downloading content (my wi-fi connection shows lots of data downloading), but even after several minutes the video never loads.
Is there a known issue, or do I not understand any format/size restrictions? These files were all MP4 and not very large, one was only 7,800kb.