High Def Forum - Your High Definition Community & High Definition Resource - View Single Post - What are all the differences between HD DVD and Blu Ray? Huh?

**PFC5** · 07-22-2007, 04:35 PM

Daleb:

Ethernet connectivity IS in the HD DVD spec so ALL HD DVD players MUST have ethernet to have a HD DVD logo.

To correct/add to a couple of things off the top of my head about the original post:

1. Many BD movies are using an "next Gen" codec for video called AVC (MPEG4) instead of MPEG2 which is much less efficient than either VC-1 or AVC. I have both formats and I think VC-1 handles motion better than AVC does, but AVC is much better than MPEG2.

2. The Profile 1.1 BD players will still not be required to have an ethernet connection so even those Profile 1.1 BDplayer (when they come out) will not be able to do the inetnet interactive stuff. That would come later (still no date given by the BDA) with Profile 2.0 a.k.a. BD-Live.

3. BD has region coding as an option for a lot but I think less than half of the BD movies released actually encode regions. HD DVD has no region coding in the spec, so many BD only movie releases in the USA are being released as HD DVD releases in EUrope because the distribution system there is different than here.

4. HD DVD has a 3 layer 51GB disc awaiting final vote, but it is not clear if it will ever be needed for movies.

5. Both formats has pretty much equal PQ now that BD studios are finally trying harder, but the BD players still cost about 67% more than the entry level HD DVD players. Many HD DVD fans wonder why pay more for BD to get the same quality as HD DVD?

6. BD has more bandwidth but with the better video codecs (VC-1/AVC) it seems to not matter at this point.

7. Fox studios went with BD because it has additonal security features to help stop pirating/copying of BD movies, and this additional software can allow a BD movie disc to check if you have modified your BD player and if so, disable it.

8. The BD format does not allow for Managed Copy like the HD DVD format does, but it has not been implemented yet by the studios.

07-22-2007, 04:35 PM	#3
PFC5 Super Moderator Join Date: May 2005 Posts: 28,385	Daleb: Ethernet connectivity IS in the HD DVD spec so ALL HD DVD players MUST have ethernet to have a HD DVD logo. To correct/add to a couple of things off the top of my head about the original post: 1. Many BD movies are using an "next Gen" codec for video called AVC (MPEG4) instead of MPEG2 which is much less efficient than either VC-1 or AVC. I have both formats and I think VC-1 handles motion better than AVC does, but AVC is much better than MPEG2. 2. The Profile 1.1 BD players will still not be required to have an ethernet connection so even those Profile 1.1 BDplayer (when they come out) will not be able to do the inetnet interactive stuff. That would come later (still no date given by the BDA) with Profile 2.0 a.k.a. BD-Live. 3. BD has region coding as an option for a lot but I think less than half of the BD movies released actually encode regions. HD DVD has no region coding in the spec, so many BD only movie releases in the USA are being released as HD DVD releases in EUrope because the distribution system there is different than here. 4. HD DVD has a 3 layer 51GB disc awaiting final vote, but it is not clear if it will ever be needed for movies. 5. Both formats has pretty much equal PQ now that BD studios are finally trying harder, but the BD players still cost about 67% more than the entry level HD DVD players. Many HD DVD fans wonder why pay more for BD to get the same quality as HD DVD? 6. BD has more bandwidth but with the better video codecs (VC-1/AVC) it seems to not matter at this point. 7. Fox studios went with BD because it has additonal security features to help stop pirating/copying of BD movies, and this additional software can allow a BD movie disc to check if you have modified your BD player and if so, disable it. 8. The BD format does not allow for Managed Copy like the HD DVD format does, but it has not been implemented yet by the studios. __________________ Denon AVR-887 Klipsch RP-5 Pwred Towers (mains) (525 watts peak each 12"Subs) All Klipsch RC-25(ctr),(2)SS1(surr),(2)SS1(rearSurr) Toshiba (2)HD-A20,PS3,BD35 For SACD/DVD-A Samsung HD-841 Panny 50pz80u plasma SETTINGS RCA HD50LPW162 50"DLP w/HD2+ SA 3250HD 47" LCD+Yamaha5790+HD-A1(bedroom) Harmony 680 + (2) 670s (amazing remote/support) Game room with Onkyo receiver & B&W Speakers The_Cable_Game Take the high ground and be happier