Blu-Ray vs HD DVD, that is the question everyone seems to be asking. Blu-Ray and HD DVD do not differ in the quality of sound or audio, they are both top of the line. Where they begin to differ is with the disc space of the two types of DVDs. Blu-Ray has almost double the capacity than HD DVD and also supports Java. Blu-Ray players also have 7.1 analog audio output while HD DVD players only have optical, HDMI, and on the highest model, 5.1 audio output. HD DVD players also have interactive menus and are also firmware upgradeable through the Internet.
The DVD selection between the two different types are about the same, Blu-Ray may have a few more than HD DVD. Finally HD DVD compared to Blu-Ray are 2 to 1 in households in the US right now and HD DVD are preferred over Blu-Ray, but that still does not sway the direction more towards either Format. So i would suggest either waiting, buying both, or if you are going to choose one, pick HD because its several hundred dollars cheaper, but there is no guarantee it will win.