Apple Trailers Speed Boost

I'm a big fan of the Apple movie trailers web site for keeping up with new movie releases. Each trailer has three streaming options (format sizes) plus four download options. The three streaming options are Automatic (smallest format), 480p (next largest format), and 720p (largest streaming format).

Traditionally, I have always used the 480p format since the 720p format took too long to stream an adequate buffer before play would begin. But a week or so ago I noticed that the 480p stream had slowed to a crawl; it was basically unusable. I had to revert to the small Automatic option just to watch a trailer without waiting forever for the stream to buffer in 480p. The problem seemed to be isolated to the Apple trailers since no other web sites suffered from slowdowns.

But today, things are different. The entire 480p stream now downloads in a few seconds, and the 720p is so fast that playback begins almost immediately. I can now watch trailers in the HUGE 720p HD format that I couldn't before.

I can only assume that the temporary slowdown was due to Apple working on the servers that deliver the streams (?). And that the huge speed boost is due to some streaming upgrade on their end. If anyone has a better explanation, let me know.

Friday 1-20-12 UPDATE: Friday evening, streaming of trailers has reverted to the former sluggish rate described above.