Originally posted by: mugs
HD-DVD is pretty much screwed if that's true.
Could someone educate me on the key differences between HD-DVD and Blu-ray? My understanding is:
- Blu-Ray has about double the capacity of HD-DVD
- HD-DVD is less of a departure from DVD from a manufacturing standpoint, so manufacturing cost is less initially
- They both use the same 3 codecs, so all other things being equal, they should look the same (I understand that Blu-Ray movies initially looked worse than HD-DVD, because they were all encoded in MPEG 2, but that has changed now?)
- Blu-Ray has data closer to the surface that is more sensitive to scratches, but TDK developed Durabis which prevents scratches pretty well
- Different menu systems
Did I miss anything? If not, what reason is there to choose HD-DVD over Blu-Ray other than disliking Sony? (which is a valid reason considering their recent high-profile copy protection blunders, i.e. the rootkit and the DVDs that wouldn't play)
well the whole Sony thing, sony cannot control the copy protection on the discs, unless its a Sony Studies film. It would be the consortium to decide any protection across all discs pressed.
the scratching is completely not a problem. the TDK developed layer is brilliant!
BD is near finalizing their BD-J code, so the menu system shouldn't be too different at that point. And while some players currently may not be capable, my PS3 should be thanks to the HDD.
🙂
and as far as manufacturing, initial costs would be more expensive due to different equipment, but the discs should actually cost less to produce once the technology is in its prime. BD's are one solid piece of plastic, or whatever that material is, whereas HD-DVDs, and DVDs, are two separate layers fused together. I would imagine that is a more costly disc pressing method since its an extra step.
image quality, in theory, should be better on BD. But some studios are releasing the BD counterparts of a movie on the 25gb discs, with the HD-DVD receiving the dual-layer treatment at 30gb. This is unfair to the BD format since they could do much more. But due to neutrality, studios are trying to not present one format as a stronger format than the other. It would be viewed by consumers are purposely marring a format by making one look better. In practice it looks as if they are doing that very thing to BD, but in all honesty, 25/30gb is not as much of a split as 50gb/30gb, which means not as much room to change IQ. And actually, movies across the formats share similar bitrates because of that. Except in the case of some movies that take advantage of the dual-layer BD, which tend to use MPEG2 and thus doesn't really provide a chance for the format to shine with higher bitrate AVC or VC-1 encodings.
Thankfully, the Pirates of the Caribbean movies will be released on BD as a 2-disc set, with a 50gb disc for the movie itself, and a 25gb disc for the extra content!!!
🙂
in theory, and in practice, a movie that takes full advantage of BD will provide higher bitrates than HD-DVD, which in turn means a higher IQ. However, some people may not be able to discern a difference.
regardless, the only reason people shy away from BD is because its Sony, and the world always wants a company to hate and right now its Sony (a few blunders kind of creates that issue at Sony). one other reason is movies on a format. Universal is a large studio, so there are quite a few movies that are not on BD that are on HD-DVD. Plus, Warner has been waiting for BD-J to come out so they can release some of their films on the format, since movies like Batman Begins and V for Vendetta use the java technology.