AfterDawn: Tech news

TDK starts selling Blu-ray 23.3GB media

Written by Lasse Penttinen @ 19 Apr 2005 11:11 User comments (13)

TDK starts selling Blu-ray 23.3GB media While the DVD Double Layer media prices remain sky high and whether we want it or not, the next generation of optical recording is coming our way. Traditional recording media provider TDK at the bleeding edge of recording technology, and has todayd released it's Blu-ray disc TDK Professional Disc (PD-RE23CN).
The TDK Professional Disc, which uses a blue-violet laser with a short wavelength for recording and playback, boasts a capacity of 23.3GB – approximately five times that of DVD media – as well as a rapid transfer rate of 72Mbps. Thanks to its random data access capability and other features available only from optical disc media, it can be expected to find growing acceptance in broadcasting applications.
... Due to the high-density recording required by the Professional Disc System, adherence of any dust on, or scratches to the disc surface can have a serious impact on recording and playback accuracy. By utilizing TDK’s DURABIS PRO, a hard coating technology developed for professional-use discs, TDK’s Professional Disc offers extremely high durability and recording reliability.
...
By use of a blue-violet laser with an extremely short 405nm wavelength, a large recording capacity of 23.3GB – about five times that of a DVD disc – is realized on a disc of the same size. In addition, high-sensitivity phase change materials and an optimized layer structure allows for a high-speed transfer rate of 72Mbps (144Mbps with two optical heads) with stabilized recording and playback.
Source: TDK

Previous Next  

13 user comments

119.4.2005 11:18
Rosco404
Inactive

Let the ball roll : )

219.4.2005 12:30

What's the retail price?

319.4.2005 12:54
Rosco404
Inactive

I Think last time i read up on these discs they were around $26 each (2700¥)

419.4.2005 12:57

ok, call me an "enduser" but whats the point for a 23gig disk? so I could back up my whole HD on it, but other than that, does it serve a purpose for the home user?

519.4.2005 13:34

It will hold a purpose is perhaps 5-8 years when it is the standard format.

619.4.2005 13:42

to me it almost seems like a pissing contest.. for the moment anyway.. eventually i'm sure we will look back at dvd5 and dvd9's the way we look at floppy's and the such.

719.4.2005 13:43

Ummm.. They aren't even selling burners yet are they?

819.4.2005 13:43

so im guessing you would need a new type of reader, as a DVD palyer wouldn't support it

919.4.2005 14:09

The most obvious purpose of these discs to me (besides the raking in of $, of course) would be for true high-definition video content. DVDs do boast very nice quality when compared with VHS, but still don't quite stand up to high-definition standards. Of course, for computer users who have tons of data to back up or transfer, five Blu-ray discs might be a little more convinient than, say, 25 DVDs. Hey, when CD burners and Zip discs first came out people thought - "How in the world will we ever use that much space; what's the point?" I can still see use for discs with far more capacity that Blu-ray discs though. Just imagine what it would be like to have an uncompressed full-length high-definition movie on one disc. That could easily take up a good 1.5 terabytes or so. We always find a way to suck up more resources.

1019.4.2005 15:12

Where can I get a blue ray burner or even a blue ray player?

1120.4.2005 01:27
Rosco404
Inactive

BD-ROMS and BD-R/BD-RW Drives are being talked about for PC's which we may see the first ones by the end of the year. As for stand alone home recorders which are available in japan i think.. At about $4000... somthing like that.....

1220.4.2005 10:23

Is Blue Ray going to be the thing or HDDVD? does anyone know where this is treading? I read that X-BOX is going to be HDDVD and that PS3 was going to be Blue ray is this true?

137.5.2005 05:15

The Blue Ray DVD will allow you to use less compression than that needed for a standard 4.7 Gig DVD so it'll give superb picture reproduction

Comments have been disabled for this article.

Latest news

WhatsApp is testing a paid subscription service - these features are coming WhatsApp is testing a paid subscription service - these features are coming (20 Apr 2026 4:45)
WhatsApp is currently testing the WhatsApp Plus subscription service with a limited group of users, and its price is currently listed as 2.49 euros per month.
Disney to introduce a new movie theater certificate - competes with IMAX? Disney to introduce a new movie theater certificate - competes with IMAX? (20 Apr 2026 1:09)
IMAX has long been a kind of gold standard for movie theaters, guaranteeing a massive screen and certai other technical elements. Now Disney is establishing a competitor for IMAX, which goes by the name Infinity Vision.
The era of cheap AI is about to end - consumers and companies may experience a harsh reality very soon The era of cheap AI is about to end - consumers and companies may experience a harsh reality very soon (19 Apr 2026 12:58)
AI companies have allowed both consumers and businesses to use their developed AI models at a significantly lower cost than their actual expenses. A clear change is now coming to this, which could significantly alter the market.
Defunct companies started selling their former employees' email and Slack messages to AI companies Defunct companies started selling their former employees' email and Slack messages to AI companies (18 Apr 2026 12:27)
Technology companies that have gone bankrupt or have simply been shut down have found a new way to make a little more money at their final gasp. The companies are selling their employees' Slack, Teams, and email messages as training material for AI compan
Google starts penalizing sites that hijack the browser back button Google starts penalizing sites that "hijack" the browser back button (18 Apr 2026 2:35)
Google has announced that starting from June 2026 it will begin penalizing websites that hijack the browser back button.

News archive