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TDK produces 200GB disc

1 May 2006 19:11 by James "Dela" Delahunty | 24 comments

TDK produces 200GB disc Having announced just weeks ago that it was working on a 200GB Blu-ray disc, the TDK Corporation has managed to produce it. However, instead of the disc having 8 data layers (25GB each) which you would expect, it has 6 layers. To achieve this, TDK has come up with a way to increase the layer's data capacities to 33GB each (a rise of 32%). The original report on the production of the 200GB BD disc comes from Japanese-language site Techon (which is subscription only).

To report gave some details about how the 200GB disc has been produced. The recording medium used is "bismuth peroxide", which forms bubbles of air when heated sufficiently with a laser light. Since the reflection of the light from these bubbles is different than it's surrounding materials, it can be used to store digital information like CD and DVD pits do.

While it's terrific that a 200GB disc has been produced, this achievement is not without its problems. The density of the bubbles is different than that of a standard Blu-ray disc and there are several other technical issues, so whether or not Blu-ray hardware could even read these discs is unclear.

Source:
Reg Hardware


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    joonbugg (Junior Member) 1 May 2006 20:12 Send private message to this user   
    Cant wait to get a Blu-ray 200GB Dvd recorder. I know its probably years away, but one can dream. 200GB on one disc. That is unthinkable.
    PirateDan (Member) 1 May 2006 20:15 Send private message to this user   
    And how much is this disc going to be??
    And why do I need to put that much data on a disc?
    And lastly with how cheap HDDs are right now why do I need this?
    borhan9 (AfterDawn Addict) 1 May 2006 20:17 Send private message to this user   
    As much as i like the massive size. I will not get Blu ray media at all if its notgoing to be multi compatible there is no use for them.
    hot_ice (Senior Member) 1 May 2006 21:58 Send private message to this user   
    200GB is impressive!!!

    However, the price will be around 1 dollar a gig which comes up to 200$ I would speculate.

    nonoitall (Member) 1 May 2006 23:01 Send private message to this user   
    It would be so nice to be able to back up my hard drives with only three discs...
    alanisgoo (Newbie) 2 May 2006 7:42 Send private message to this user   
    (Man spends hours burning a 200 GB DVD Data disc with 45 DVD ISO files to play on his modded XBOX 360)
    (Man accidentally drops disc on floor)
    (Toenail gives disc a major scratch, disc not readable)

    (Man spends hours burning down house, family inside)
    tin23uk (Junior Member) 2 May 2006 8:35 Send private message to this user   
    crc error ever seen a grown man cry?
    domie (Member) 2 May 2006 16:21 Send private message to this user   
    alanisgoo: hopefully, man is not stupid enough to produce just one back-up and has the unlimited intelligence to make 4 or 5 copies in case of accidents
    showmethe (Junior Member) 2 May 2006 17:26 Send private message to this user   
    200 gb that sucks sadly

    y not just carry a portable drive around

    200 gb disk will brake and there goes life times money
    plutonash (Member) 2 May 2006 22:57 Send private message to this user   
    Yeah you could make four or 5 back-ups but at the current price of 1 a gig thats 800-1000 dollars. Even if the price was reduced to lets say 20 dollars for a Disc (long time bc HDD are even close to being that price) you would have to spend around 80 to 100 bucks. HDD will always be better alternative to back-up data. Not to mention that these disc wont be read or writing on any of the current or soon to be relased BD players because they rushed the technology out the door kinda like how old DVD players have a hard time reading burnt DL disk now. Totally useless Technology, by one of the worst manufacters of DVDs
    Chris1000 (Junior Member) 3 May 2006 10:55 Send private message to this user   
    (Man spends hours burning a 200 GB DVD Data disc with 45 DVD ISO files to play on his modded XBOX 360)
    (Man accidentally drops disc on floor)
    (Toenail gives disc a major scratch, disc not readable)

    (Man spends hours burning down house, family inside)

    Man, I hate to be an ass, but I could JUST see this happening to someone/somewhere!
    Rikoshay (Member) 3 May 2006 11:05 Send private message to this user   
    Meh. What most of you are missing here is the increadible acceleration of technology today. It took CD-R's to be less than a dollar about 5-8 years, and DVD+/-R's took about a third of that time. It shouldn't take more than a year or two before the technology becomes so used and built upon that 200GB discs will be 10 bucks or less. HDD's are becomming low in price because they're near the end of their usefulness, and although I still like them over CD's and DVD's, and that I own a 300GB external, a 200GB disc would save a whole lot more space in a lot less area of mass. Either that or wait for HVD Recorders to go down to 100 bucks in a decade.
    pb123 (Inactive) 3 May 2006 11:25 Send private message to this user   
    a 200gb disc??? man in about 5years i bet you'll have usb's that can hold that much!
    pb123 (Inactive) 3 May 2006 11:29 Send private message to this user   
    or those memory stix for psp's and cameras.
    borhan9 (AfterDawn Addict) 3 May 2006 13:58 Send private message to this user   
    I think because the disc is soo big in capacity not only is it going to be stressful not to get it damaged, it should b automatically re-writable because im not goin to sit there hour on end to store everything on my hdd first and then put it on the disc and whait about 50yrs for it to complete the burn.

    I think they will bring it out sooner or later but its probablly gonna cost an arm and a leg.
    neo1000 (Junior Member) 3 May 2006 18:48 Send private message to this user   
    So, Blu-ray players are not on the streets and they`re talking about incompability already? mmmm....
    webwise (Inactive) 4 May 2006 7:41 Send private message to this user   
    I think both HDD and Blue Ray will survive. HDD is going to be affordable to us hobbyists so we will use it (And do we need to back up 200 gb at one go?).

    Blue Ray will sell to corporate users (at about $1 a gig). No problem.

    Hey mods. Can I get my newsletter before it is 2 days old? And I love being a Newbie after 30 years in the biz at the age of 60. Want any advice. LOL.
    deano915 (Newbie) 4 May 2006 9:57 Send private message to this user   
    you guys need to think about it, a few years ago we were using 1.44Mb folppies for backup, now we are using 4.7Gb or 8.5Gb DVD's, 200 GB will not be hard to fill. Stop complaining, it is just the next step for a series of steps we have already done. No one predictred that we would use a HDD as big as we do now, seriously, think before you post
    webwise (Inactive) 4 May 2006 10:09 Send private message to this user   
    Right on Deano. I forgot to add that by the time we need it Blu Ray will have dropped in price so us hobbyists can use it. In the meantime HDD will serve me. I can afford it.
    rainofire (Newbie) 5 May 2006 0:06 Send private message to this user   
    i know this is kind of stupid but wut if their able to put the same thing into the psp umds n make it have more memory, if the figured out a way to increase the memory of a blue ray then they may be able to increase the memory of a umd someday. or wut if they make a blueray umd n all u need is an update to read the blue ray format. (this may be a stupid question to some or many.)
    Jowitt (Newbie) 5 May 2006 6:09 Send private message to this user   
    With capacities like these the next step should be to reduce the disk diameter to the size of a Sony minidisc with an outer protective casing.
    bseeds (Newbie) 6 May 2006 5:20 Send private message to this user   
    Compatibility? Cost? Who cares?
    Buy new hardware for God's sake.
    Imagine the quality of programming and video you can fit on a 200GB disc.
    3D???
    showmethe (Junior Member) 6 May 2006 18:54 Send private message to this user   
    y not carry a portable drive that does the same thing that the cd can do
    hot_ice (Senior Member) 6 May 2006 19:46 Send private message to this user   
    200 gb is honestly a positive breakthrough no matter how you put a spin on the issue. Listen, if you buy a disc of this capability, no matter what the cost, then assumably, you not only have the financial ability to purchase this item and replace it if an unfortunate accident occurs.

    Its great to see progress!
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