Video Playback - Start of video is jumpy

1. Select to play a video not in cache, for example, http://current.dev.curriki.org/xwiki/bin/view/Coll_NortelLearniT/21eTeacherStandards

Bug
The start of the video is jumpy and the audio has static.

I downloaded the video and it is not in the video itself.

I confirmed the issue on IE 6, 7, 8, and FF 3.5.

I confirmed the issue on several videos, although they were all Nortel videos.