Hi. Just my 2 cents on the issue: I have a high speed connection and also suffer the same problem. I just went into the Rock Style 1 opening video and got hangs trying to play it. Running download tests at another site I was running at good speed:

640 kilobytes per second download using a dslreport.com test and about 615 kb/s using the good old 'download a big file' method.

Downloading the video directly runs at 125 - 150 kb/s.

It is better or worse depending on the time of day and day of week, so I suspect traffic somewhere along the line is having an impact. At this time there happens to be 62 people hitting your forum server. (I do not know if this is the same server that runs your videos.)

I will try to note when I see any difference how many people are on. Perhaps it's as simple as server load at the time. GT might be too popular for it's own good. :)