EVD - Are we worried?
So China has tried to steal the lime lite of HD DVD and Blu-Ray by reintroducing the previously failed EVD specification. So what do we know from the press release and rumors?
- Some 20 manufacturers will be making 54 players by 2008
- Uses a red laser (like HD DVD)
- Uses a new codec that is supposedly as or more efficient than MPEG4 (haven’t heard a comparison to VC-1)
What we don’t know.
- How many U.S. will sign on (so far zero)
- How much capacity (assuming if similar to HD DVD ~25-30Gig)?
- What audio codecs will it support?
- Will these devices use HDMI/HDCP?
- Will EVD support new audio formats (DTS-HD, DD+)? I don’t think so.
This is a scam. These players are for China only. There is no US content on board. No codec support. This is a chinese player to play chinese content. This may work well in China and maybe around asia. That may not be a bad thing with 3 billion of the worlds 5 billion people concentrated right in the asian area.
So what does this mean to you and me?
Nothing. Now go watch a Blu-ray movie.
Check out our new sister blog on Home Theater, HTBlog.net





December 12th, 2006 at 1:38 am
HD DVD doesn’t use a red laser, it uses a blue laser just like blu-ray. EVD’s technology has nothing to do with hd dvd. It could potentially be relevant to people here in North america because hd dvd and blu-ray will want to become worldwide products, just like dvd, at some point. If there are completely different formats in every region, that cuts down even more on their potential impact, ability to ramp up production and drop in price, etc.
December 12th, 2006 at 4:34 pm
Actually you are incorrect. It does use a red laser.
EVD does have the same limitation that HD DVD has which is the wavelength of a red laser hence the reason that there is a lower ceiling to how much data can be put on the disk.
December 13th, 2006 at 6:46 am
Mole you are wrong. Both HD DVD and Blueray use blue laser. Bluray has a larger numerical apeture and moves the data layer closer to the laser which results in higher bitrates and capacity.
DVD is red laser so likely EVD will not have much more capacity than DVD.
Try doing some research before posting an article next time:
http://en.wikipedia.org/wiki/HD_DVD
“The HD DVD disc is designed to be the successor to the DVD format and can store roughly 3-4 times the amount of data as its predecessor. This was achieved by using a 405 nm blue-violet laser which allows more information to be stored digitally in the same amount of physical space. The additional capacity of HD DVD means the discs are more suited to high-definition video than standard DVDs. In comparison to its main competitor, Blu-ray Disc, which also uses a blue laser, HD DVD has less information capacity per layer (15 gigabytes instead of 25). HD DVD shares the same basic disc structure as a standard DVD: back-to-back bonding of two 0.6 mm thick, 120 mm diameter substrates. The 30 GB dual-layer HD DVDs have been used on nearly every movie released in this format.”
December 13th, 2006 at 5:08 pm
Either way, there is no competition. China does not enforce copyright… you cannot compete with free.
December 13th, 2006 at 7:56 pm
read the wikipedia article linked above or other articles around the net focused on the delopment of blue lasers, nichia, sony, toshiba and the dvd forum. both formats use blue lasers, just at different frequencies. There is no “limitation” shared by EVD and HD DVD because they’re entirely unrelated.
January 1st, 2007 at 9:26 am
here is an update from an article by eetimes on the codec called avs format. it doesn’t say much though in terms of quality or what audio capabilities.
http://www.eetimes.com/news/design/showArticle.jhtml;jsessionid=DUBOZZNKAZXGIQSNDLQCKHSCJUNN2JVN?articleID=180204086
http://www.cdrinfo.com/Sections/News/Details.aspx?NewsId=15055
January 4th, 2007 at 7:01 pm
I am a dummy, and I will research what I write from now on.