HD-DVD Playback - On the Xbox 360 & on NVIDIA GPUs

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As a follow up to our recent articles on HD media playback, we will now take a look at a couple HD-DVD movies using the Xbox 360 player. Earlier this week, we looked at the performance impact of playing back H.264 encoded Blu-ray titles on a modern day PC. We explored the necessity of graphics decode acceleration for systems with CPUs less powerful than a Core 2 Duo E6700. The capability of different graphics cards was determined by looking at CPU overhead while decoding movies.

Today, we would like to look at the state of HD-DVD playback on the PC. The importance of looking at both formats rest mainly in the types of codecs and bitrates used. Currently, most Blu-ray movies are MPEG-2 and most HD-DVD movies are VC-1. Both Blu-ray and HD-DVD support H.264 as well, and this is the codec in which we are really interested (as it is the most difficult to decode). In addition to the recent release of Blu-ray titles that use H.264, there are also a couple HD-DVD titles that employ AVC: The Interpreter and U2: Rattle and Hum.

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