“Issues On BluRay Or AOD” Excellent Comments On Petition Online
The following are some of the excellent comments on http://www.petitiononline.com/cehddvd/petition.html [QUOTE] “Relative bandwidth is a critical point. If AOD (the Advanced Optical Disc) uses Corona (WM9) as the main video compression algorithm, then AOD may have more bandwidth to offer compared to Blu-ray. AOD could offer superior audio and video to Blu-ray unless Blu-ray also choses to offer support for Corona (WM9). Not only is Corona superior to MPEG-2 by a significant margin, it only needs around one-third the space compared to MPEG-2. 1080p running at 15 Mbps is superior in quality to MPEG-2 running at 40+ Mbps. This cannot be ignored. Further, 1080p should be the main format for HD-DVD. Internal “scalers” can be utilized to provide 720p and other output resolutions for compatability. Audio must be on par with lossless quality compression; there is room on either AOD or Blu-ray for lossless caliber 5.1 or 6.1 or 7.1. I will support whatever format offers the best combined audio and video for both movies and music and true 1080p resolution is a requirement.” [QUOTE] “WM9 (Corona) offers almost three times the efficiency and still offers higher quality on top of it when compared to MPEG-2!!! How on earth can anybody release a format in the year 2004/5 that would not include an advanced video compresion such as Corona is beyond reason! 1080p is a must and so is an advanced video compression methodology such as WM9. My goodness! Corona uses almost on-third the space and gives a better quality picture!! What the heck is wrong with the politics over quality?!?! If you can’t find a video compression methodology as good as Corona/WM9, then simply include Microsofte in the Blu-ray or AOD specs! INCLUDE MICROSOFT IN THE BLU-RAY OR AOD SPECS! Important point being consumers know what they want and will not settle for compromise when there needs to be none! 1080p, WM9, High Quality Audio!” [QUOTE] “Give us 1080p with the highest quality possible! This means blue laser with Corona or comparable wavelet compression. I fully expect HD-DVD to have superior audio to DVD, with MLP encoding or higher bandwidth lossy compression. Any format that delivers anything but the best audio/vido experience technically possible is not acceptable”! [QUOTE] “AOD or Blu-ray depends on who gives us all the following: 1080p, Corona/WM9 video compression, 24/48 MLP for a primary audio track, or 24/96 for movies because you've got so much room with Blu-ray. I’ll also accept DTS for movies but only if it is at near lossless bandwidth useage! I am 110 percent in support of this petition: make it so! If Blu-ray won’t support an advanced video codec, then what good is only MPEG-2 besides backward compatabilty? How can anyone refuse a video codec that is not only superior, yet utilizes only one-third the bandwidth to do it! 24/48 MLP or 4 to 6 Mbps DTS and WM9-corona 1080p, anything less makes no sense, we can downscale and provide several output choices for older displays.” [QUOTE] “1080p! I am buying a 1920 x 1080p display and I must have full support of my 1080p projector! My friend is getting a Sony SXRD 1080p display as soon as they are available! NO 1080 INTERLACED! Interlaced is an abomination! I will support AOD or Blu-ray depending on who gives us 1080p with video compression at least as efficient and high quality as Microsoft Corona/WM9 as well as 4 to 6 mbps audio for movies. This will require MLP, lossless WM9 perhaps, or DTS running at much higher bandwidth in this range! Pink Floyd music videos in 24/96 MLP and 1080p video are what AOD or Blu-ray are all about. MPEG-2 is only for backward compatabilty.” [QUOTE] “Only 1080p will suffice. Microsoft, with WM9 has demonstrated what can be done with this technology. If Blu-ray tries to compete with only MPEG-2 support, they will lose to AOD. In that case, the only thing the AOD group has to do is support WM9 to succeed. They must also listen to the details of this petition and give us a high-bandwidth audio movie format I agree wholeheartedly with this petition!” [QUOTE] “Advanced Optical Disc (AOD) has more releative bandwidth than blu-ray if AOD uses Corona/WM9 and Blu-ray only offers MPEG-2. If AOD chooses to support Corona and 4 to 5 Mbps audio for movies and blu-ray does not, then AOD has more relative bandwidth because Corona is not only tremendously more efficient it is also much higher quality. Whoever supports the highest quality audio as well as the best quality video compression will win the AOD versus Blu-ray war for HD-DVD. P.S.: Dolby Digital is too harsh and unnaceptable for any new format. It should be used only for backward compatibility.” [QUOTE] “This petition should now more accurately be called: 1080p is ESSENTIAL, High Quality Audio (5 Mbps for movies) is ESSENTIAL, Support AOD or Blu-ray depending on who supports the best quality video compression. MPEG-2 is only required for compatability purposes but support for a much better video compresion codec is CRITICAL!” [QUOTE] “We need Blu-ray bandwidth/storage! We need 1080p! We need the best available video compression—which is apparently wavelet/Corona (WM9)! We need high quality audio, not the harsh Dolby Digital! There must be a single high quality soundtrack that is able to use at least 4 to 6 megabits per second! Furthermore, only Blu-ray will allow for 1080p video and 24/96 MLP audio at the same time: this is critical for the future of music DVDs or should I say MUSIC BD's!!!! Go Blu-ray, Go Corona, Go DTS/MLP for movies!!! Dolby Digital and MPEG-2 for backward compatabilty only!” [QUOTE] “Blu-ray offers significantly more storage and Bandwidth than the AOD proposal, and ultimately it is bandwidth and storage that set the limits to achievable quality. I vote for the success of Blu-ray. 1080p is the only way to fly for a new format. Use the best video algorithm that yields the highest quality knowing full well that you have almost 30 Mbps for video alone! Finally, Use MLP, B-Format, or even DTS at 4 to 6 Mbps per second. Dolby Digital is only good for backward compatability and perhaps other tracks on HD-DVD, but not the main track! I’m up for any audio option that is a major improvement over current DD/DTS. Finally, discrete side channels and a discrete tactile transducer channel would be welcomed highly!” [QUOTE] “While 24/192 MLP may be good for ‘HD-DVD-Audio’ there has to be consideration for proper proportional useage for the video, regardless of what form of MPEG or wavelet, Corona, etc. compression is utilized. That being said, in regards to movies, with Blu-ray-type bandwidth it makes no sense to use Dolby Digital 5.1 anymore, unless it for a foreign language or commentary or such. I agree that for movies we need to vastly improve over Dolby Digital. I do like the idea of using MLP lossless for movies, but perhaps on the order of 20/48, 24/48 MLP, or 24/96 just for the front three loudspeakers. Theoretically with 36 Mbps bandwidth of Blu-ray, you could use 24/96 MLP all the way around and still have 26 Mbps for video. Regardless of what major improvement is done for movies in regards to one high quality 5.1, 6.1. or 7.2 track, it is obvious that Dolby Digital is not welcome unless used for other languages, commentary. I agree wholeheartedly with the need for 5+ Mbps audio movies on Blu-ray ‘HD-DVD.’” [QUOTE] “1080 PROGRESSIVE! An absolute must for any new format! Give me 1080p or don’t bother! 1080p is going to be the most popular display device for the forseeable future, so we won’t settle for less. Dolby Digital is outdated and too harsh. With Blu-ray and great bandwidth, we must have a lot more bandwidth used for better audio! Lossless compression preferrable! Sony SXRD display technology as well as the 1080p DLP chip, 1080p...so many 1080p technologies!!! 1080p is critical!” [QUOTE] “1080p 24 is an absolute must, anything else will not take full advantage of 1920 x 1080 resolution display devices such as Sony SXRD and other HD display devices capable of 1080p that will no doubt be the most popular Hi-Def display device. Also, must majorly improve the sound by having at least one audio track that uses high bandwidth. Doby Digital and even the latest DTS offerings are not acceptable. Finally, it is hard to believe MPEG-2 would be utilized when it is such a DOG with fleas compared to todays advanced algorithms such as Corona and other wavelet type of algorithms. Do not use MPEG-2 for Blu-ray or any other HD-DVD format—it makes no sense! Why on earth would you want to use outdated MPEG block encoding for a future HD-DVD format? It has been clearly demonstrated that block encoding is outdated and vastly inferior to todays modern video compression algorithms.” [QUOTE] “Blu-ray using MPEG-2 is like a Lamborghini using wooden wagon wheels. Block encoding is outdated. Dolby Digital is ABSURD for a high-bandwidth HD-DVD format. Need to use much higher bandwidth, perhaps even MLP for a primary cinema audio track.” [QUOTE] “Dolby Digital is NOT acceptable for HD-DVD. Not even close! We need to dedicate at least 4 Mbps bandwidth, potentially more, to a single primary audio track, whether is be a new to be released algorithm, 4 to 5 Mbps DTS, 20/48 MLP, whatever... NO WAY use Dolby Digital for HD-DVD! WE NEED SERIOUS IMPROVEMENT! Also, say NO to BLOCK ENCODING and yes to CORONA or WAVELET type of ENCODING!!!”
Submitted by Christian Artman, Philadelphia, Pennsylvania
Editor-In-Chief Gary Reber Comments:
The above are strong statements of opinion expressed by serious home theatre enthusiasts on http://www.petitiononline.com/cehddvd/petition.html. I strongly urge our readers to visit the site and support the petition for the highest qualitiy HD-DVD both in terms of picture and sound. We will continue to bring you the latest news on the HD-DVD format war in Widescreen Review. We have an opportunity to influence the outcome of the war between the Blu-ray Disc Founders Group and the DVD-Forum open standard Advanced Optical Disc or AOD. Please express your thinking in Letters To The Editor.
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