Print 30 comment(s) - last by AMDcertfdbigot.. on Jun 14 at 4:57 AM

HD DVD-Rs, followed by 2X BD-R on the way

Verbatim Corporation, a Mitsubishi Kagaku Media (MKM) brand, announced July availability of HD DVD-R media in Japanese markets.  The company then announced that it will be the first to offer 2X (72Mbps) single-layer 25GB Blu-Ray Recordable and Rewriteable media this July as well.  Verbatim has not announced an estimated shp date for the US. 

The 15GB HD DVD-R media will be thrown into production in the early part of July, however the press release says production of 30GB dual layer HD DVD-R media will begin this month.

Like its DVD-R counterparts, HD DVD-R media will feature the Metal AZO recording dye which Verbatim claims to be highly resistant to ultraviolet light and heat which can wear away at the media.

MKM HD DVD-R media is currently manufactured exclusively in the company's Singapore facility.  The company's Blu-ray recordable media is manufactured exclusively at a facility in Mizushima, Japan.  30GB blue laser Ultra Density Optical (UDO) discs are also manufactured at the same Mizushima facility, and Verbatim employees assure us the transition from UDO-R to BD-R manufacturing is seamless and logical.

Pricing was not announced at time of publication. LG just announced a 4X BD-R burner, but as of now there is no 4X (144Mbps) BD-R media.  Pioneer's Blu-ray recorder became available about a month ago.

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RE: 2x
By GNStudios on 6/11/2006 1:40:01 PM , Rating: 2
How many kbit/s is 1X on BD?

RE: 2x
By KristopherKubicki on 6/11/2006 2:05:32 PM , Rating: 2
1x BD is 36Mbps. I have updated the article to reflect this.

RE: 2x
By Runiteshark on 6/11/2006 2:10:17 PM , Rating: 2
How do they even calculate this? How much data they can pull at a set RPM or what?

Because it seems like CD and DVD x's are arbitrarily chosen.

RE: 2x
By BZDTemp on 6/12/2006 7:06:20 AM , Rating: 2
CDx1 is the speed it goes when playing CD-Audio and that, if I recall correctly, equals to 150 KB/s. Similar DVDx1 is the speed used when playing a DVD movie.

I'm guessing it's similar with HD-DVD and Blue ray.

A figure in rpm would not make sense since the discs does not spin at a constant speed but in fact runs slower the longer into the movie/music you are. Disc's are written and read from the center and outwards and the change in rpm is to ensure a constant data transfer speed needed when playing music and movies.

Note that constant rpm's are used in may drives when the discs are used for datatransfer and not media playback. This also means that fx. many CD-drives claiming 50x speed may in fact only deliver that at the outer edge of the CD!

RE: 2x
By GNStudios on 6/12/2006 2:34:24 AM , Rating: 2
thank you!

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