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Blu-Ray DVDs Hit 100 GB

Xesdeeni writes "According to The Register and MacWorld, TDK has unveiled a Blu-Ray DVD with four layers that will hold a whopping 100 GB of data. This is shortly after the previously reported HD-DVD announced three-layer HD-DVD that would hold a "mere" 45 GB. Unfortunately, this is also on the heels of the news that the HD DVD unification talks have stalled."

24 of 349 comments (clear)

  1. and everyone is still using floppies : ) by essreenim · · Score: 1, Interesting
    Hardware: Blu-Ray DVDs Hit 100 GB It's really sad that we have such high capacity easily scratchable media. Why o why are we not using mini discs ....

    1. Re:and everyone is still using floppies : ) by MrP-(at+work) · · Score: 2, Interesting

      i'd prefer 4 layers, 25gb per layer but only 25 usable, that way you can have 4 layers with the same 25gb but offset each layer by ~33%.. if it cant read a bit on 1 layer, read the bit 33% over on layer 2, if layer 2 is bad, layer 3, etc

      id buy that!

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      [an error occurred while processing this directive]
    2. Re:and everyone is still using floppies : ) by Nytewynd · · Score: 3, Interesting

      Maybe this is a dumb question, but if the surface gets scratched, wouldn't it prevent all layers from being read correctly? I guess if there was an offset on the layers, you could create some kind of raid structure on the disc. Chances are that if each layer is offset by 180 degrees, the scratch wouldn't harm both copies, but at that point I wonder if you would be sacrificing performance to the point where the disc is too slow to use anyway. If it had to scan the disc, decide if the data was readable, if not find the other copy, and the use that, it might not work too well. Also, writing your data would take twice as long. They already say it will take over an hour to write an entire disc but if you only need to write smaller files on it, each file will take twice as long.

      100gb is nice and all, but if you can't rely on these for more than backup due to their fragility why not just go RAID 1 and get some extra read performance at the same time?

      These are nice for movies, but DVDs scratch badly as it is. I don't want something even less durable.

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      /. ++
    3. Re:and everyone is still using floppies : ) by OglinTatas · · Score: 2, Interesting

      "TFA says that Blu-Ray discs are still more prone to scratching than DVDs."

      There was an article the other day about CVD diamonds. If diamond production becomes dirt cheap, coating CD's and DVDs with it would prevent scratching, and you could pack as much information on them as can fit, with less error correction than on current scratchable disks. Monitor screens could probably benefit, too, as well as cooking utensils... I'm running off topic here, so:

      Coat blu ray with diamond, problem solved.

    4. Re:and everyone is still using floppies : ) by ignorant_coward · · Score: 2, Interesting


      What about some sort of RAID 5 in concentric rings from the inside to the outside of the disc? A scratch would have to span multiple regions to affect data integrity (not foolproof, just better).

    5. Re:and everyone is still using floppies : ) by ediron2 · · Score: 2, Interesting
      Maybe this is a dumb question, but if the surface gets scratched, wouldn't it prevent all layers from being read correctly? ... an offset on the layers... some kind of raid structure ... if each layer is offset by 180 degrees, the scratch wouldn't harm both copies, but ... sacrificing performance ... to scan the disc, decide if the data was readable, if not find the other copy, and the use that... Also, writing your data would take twice as long.

      Heh, nice job. You're halfway to reinventing FEC, or Forward Error Correction, a technique for on-the-fly checksumming and knowing what data is valid and what data is damaged. It's *ideally* suited for broadcast or other high-dataflow streams, like dvd data. And heck, no, it isn't a dumb question. It's just been asked and answered. Now if someone could just tell me why this (or an earlier generation of error-correction code) isn't built into cd's and dvd's to start with... I *hate* unprotected media and losing data to scratches.

  2. Go BluRay by Mr+Smidge · · Score: 1, Interesting

    Personally, HD-DVD's disgraceful AACS is enough to make me cheer for Blu-Ray, but I really think that BD-ROMs will win the battle.

    Go Blu-Ray!

  3. Reliability by Airline_Sickness_Bag · · Score: 5, Interesting

    We already have problems with DVDs and CDs going bad. From what I've read, the Blu-Ray discs may be even more fragile due to their extremely thin protective layer. If I am to pick between the two coming standards (Blu-Ray vs HD), I'll choose the more reliable one.

    1. Re:Reliability by FidelCatsro · · Score: 2, Interesting

      Sony on the UMD disks for the PSP (which are derived from Blue-ray tech)Have a cartridge like case for the disks , So perhaps when they go comercial they will have the sence to use a simmilar case for blue-ray .
      It may put the cost up a little , but i would be willing to pay extra for the peace of mind.

      --
      The only things certain in war are Propaganda and Death. You can never be sure which is which though
  4. Durability? by J+Barnes · · Score: 2, Interesting

    There's got to be a price for these increases in storage capacity. With more data in a smaller package, aren't you just asking for larger errors due to physical damage and defect?

    I'm just thinking of how scratched my average disk can get, and imagine if that scratch now corrupts 200 megs of data instead of a few bits in a song.

    When are we gonna have to enclose these things in some sort of 8-track like case?

  5. PS3 by ignipotentis · · Score: 2, Interesting

    Yes, but is this something that will be standard on all blu-ray devices. Will the PS3 be able to read blu-ray discs which can reach 100GiG? Further, will game developers take advatage of that much space for larger, more expansive worlds?

    Will the content providers step up and use the capacity?

    --
    Don't waste time... procrastinate now!
  6. Re:Multiple Standards by Tenebrious1 · · Score: 2, Interesting

    But back to the topic at hand: The industry would benefit more from having ONE SINGLE TRUE UNIFIED STANDARD as opposed to a couple of standards, which would confuse people.

    Actually, it doesn't matter, as we've seen with the DVD +/- wars, because manufacturers stepped up and released burners capable of burning either medium. The only losers are the early adopters who are stuck with the losing format.

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    -- If god wanted me to have a sig, he'd have given me a sense of humor.
  7. Re:Size is no longer the issue by harrkev · · Score: 2, Interesting

    Being robust is also and advantage -- but NOBODY talks about it. I find that DVDs are quite prone to having problems if you get them scratched. With the density increasing, this problem is likely to get worse. A larger DVD - ho hum. An indestructible DVD - that excites me!

    --
    "-1 Troll" is the apparently the same as "-1 I disagree with you."
  8. Re:Multiple Standards by Anonymous Coward · · Score: 1, Interesting

    SACD and DVD-A are not failing to catch on because of a platform war. They are failing to catch on because nobody cares.

    The vast majority are productions which were "enhanced" for these formats were not actual improvements by the artist, nor are they usually identical recordings at a higher bitrate for the sake of audiophile appeal... but rather a naked attempt by the label to sell you a slightly more flashy second copy of an album you already bought.

    Who in the hell is going to buy an alternate player just to support a format which offers pretty much no real advantage to the consumer?

  9. Re:Size is no longer the issue by edwdig · · Score: 2, Interesting

    From a consumer standpoint, there isn't much difference between the formats other than capacity. With either one, you're going to need new hardware to use it.

    The real difference is in the manufacturing end. HD-DVD is designed with the goal of minimizing the amount of changes needed at the existing manufacturing plants, making it cheaper and easier for existing manufacturers to upgrade. Considering that movies often come with extra discs without increasing the retail price, odds are that Blu Ray isn't expensive enough that a movie on a Blu Ray disc would sell for more than one on an HD-DVD disc.

    Considering Blu Ray discs are now reaching more than double the size of HD-DVD's, I think it's enough of a difference to justify the additional one time cost of upgrading the manufacturing plants. By the time we get writable versions of these discs, we're all going to have terrabyte hard disks and complaining how it takes over 20 HD-DVD's to back up our system.

  10. Re:Multiple Standards by soupdevil · · Score: 4, Interesting

    I'm a composer/producer. It's actually as easy or easier to make a surround mix than a stereo mix.
    But it's difficult for the average consumer to have a playback system that makes it worthwhile. You have to spend a few thousand dollars, and have the right room, and then spend your time sitting in the sweet spot to listen to your music.
    If, like me, you listen to music while driving, exercising (oh wait, this is /.) and entertaining, there really is no reason to pay for the equipment/setup, and therefore no reason to spend the extra bucks on the higher quality discs.

  11. Re:Multiple Standards by DickBreath · · Score: 2, Interesting

    The public at large (Joe Sixpack) gets all confused with this 2-format thing.

    Joe Fourpack seems to understand that they can't play XBox games in their PS3.

    Based on past OpenOffice.org discussions, it is also clear that Joe Fourpack understands that it is best to just use Microsoft Office, because it is not interoperable with the others. i.e. multiple standards.

    Think of the benefit from multiple formats to the content owners (not to be confused with content producers).

    If you have one type of DVD player in your living room, but computers (big name ones) come with a different type, you canot play the DVD on your computer. If your car has yet a different type of player, you will need to conveniently purchase another copy of the content for your car.


    Yes, I am being sarcastic after the article about needing biometric ID's in order to play your DVD.

    --

    I'll see your senator, and I'll raise you two judges.
  12. Re:Multiple Standards by slaker · · Score: 2, Interesting

    For a lot of people who DO have DVD-A and/or SACD recordings, the primary appeal is surround sound, not higher resolutions or sample rates.

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    -- I wanna decide who lives and who dies - Crow T. Robot, MST3K
  13. Re:Multiple Standards by nmb3000 · · Score: 2, Interesting

    From what I've read about the formats, it seems very unlikely that there will be any "combo" drives for BluRay and HD. DVD -/+ disks (plus all the way baby) are similar enough and use the same laser that doing a dual drive isn't that hard.

    Personally I think I like BluRay partially because it seems to have the ability to offer a lot more storage space than HD. The one question about that is the time it takes to create a disk, I don't want to wait a full day to burn 100GB. However, the bigger reason I like BluRay is the name. I mean come on, HD-DVD? Boooooooring. Not only that but it will introduce confusion where there's already to much. HD-TV, Hard Drive, HD floppies, Half Duplex, Harley-Davidson. I mean, I don't need any more things I have to explain 10 times a day to my grandparents.

    Besides, blue is cool. Everything nowadays has those great blue LEDs. The way I look at it, you're either with the blue pop culture or you're with the mole men.

    --
    "What do you despise? By this are you truly known." --Princess Irulan, Manual of Muad'Dib
    /)
  14. Now instead of ..... by gstoddart · · Score: 2, Interesting

    Now instead of complaining that when you buy 30-minute shows on DVD which only put two episodes/disk, we'll have a format with 25x the capacity which is still only holding 2 episodes.

    That's always bugged me about that kind of stuff on TV. They want to sell you a bazillion dollars worth of stuff. You want it all on one disk.

    Then again, I have a huge problem equating two 30 minute episodes of a show which has been running for several seasons to the equivelant (or more) then a movie which cost over $100 million to make.

    Yet, time and time again we see just that -- two episodes of Freinds (or whatever) costs as much as one Lord of the Rings movie -- personally I think they need to look at macroeconomics -- Mr Smith is not getting the utils of enjoyment out of the second purchase.

    There is no reason to believe this won't keep happening as disks get bigger.

    --
    Lost at C:>. Found at C.
  15. Re:groovy... by Not+The+Real+Me · · Score: 3, Interesting

    Yes, but data integrity is the real key.

    I've been burning DVD+-R's (4.7gb) and when I run the "verify data" option to confirm a good burn, the defective rate on my DVDs is about 1 in 5. I've had situations where the DVD burns and verifies perfectly in the burner but I cannot get it to read in another DVD reader.

    Then there is the question of DVD rot. A DVD is a sandwich of two plastic layers. There is the possibility that the cement that binds these layers can become unglued.

    For routine DVDs, I find myself burning 2 copies to be safe. For important DVDs I burn 3 copies (and use media from different manufacturers).

    My primary DVD burner is a dual layer burner but I do not trust DVD media enough to burn dual layer discs. These 3 and 4 layer discs leave me wary of their long term reliability.

  16. From the trenches by Anonymous Coward · · Score: 3, Interesting

    As a data addict, I feel I must weigh in here. There are a few concerns:

    Migration
    I have switched exclusively to recordable DVD for backups about 20 months ago. The extra capacity was dearly needed, as my CD-R collection was growing large by bounds and leaps, making it unmanageable. At first, like everyone else, I thought whoa - 4.37GB - surely nobody will need more that than. Famous last words.

    What was interesting to observe is that a) the transition to DVD from CD-R happened faster for me than from previous backup mediums to CD-R (Zip disks, MO discs, etc.). Whereas I had used CD-R in conjunction with my previous mediums for quite a while, jumping from CD-R to DVD-R was much quicker. About the only things that held me back are the fact that most OS installation media are still CD-R images, and the fact that the mp3-capable HU in my car only reads CD-R. That's why I still stock CD-R, otherwise I would have none.

    Capacity
    I felt the capacity of DVD-R as being limiting much quicker than I did so with CD-R. In other words, 4.37GB "got small" much faster for me than 700MB did. Broadband is here to stay and is only getting faster. The average computer, its display adapter, is getting faster and can display higher bitrate video content. Filesize is only going up.

    Evolution
    I feel that DVD-R is a clear improvement on technology compared to CD-R. There are a number of practical issues to consider. It looks like they did their homework and fixed the main issues with CD-R.

    Number one is sandwiching the recording layer between protective plastic discs, as opposed to putting it on top, as CD-R did, where it is easily damageable.

    The other is the overall improvement of recording reliability. Granted I only use high-quality media, but it seems to me that either thru improved error-correction algorithms and/or improved quality control/design of both recorder and media, DVD-R far surpasses CD-R in reliability. I haven't burnt one single bad disc that was directly related to media or recorder in over 1000 burns on multiple recorders. CD-Rs would often fail to verify.

    Price
    There is no contest as far as the price, per GB, of DVD-R vs. hard drive for backup purposes. Believe it or not, backup media has traditionally been lagging behind the real needs of customers.

    Standards
    CD-R had no competing standards. Good. In the beginning of DVD-R, it was a problem if you had a -R and someone else had a +R. Bad. They fixed it by having virtually all drive manufacturers, for both recorders and readers, seamlessly support both standards. Fair enough, and it gets a "fair -to- good" grade. It is transparent enough that today you don't need to even look at what media you're buying (if your name is "John Smith," of course - us freaks look at much more than just the brand of media we buy). But DVD-R was clearly a step into the general direction of chaos as compared to CD-R. It looks like the next gen will be considerably worse, unless one of the standards completely kills the other one before either comes to market.

    Conclusion
    Please note that I am not closely following the BR vs. HD-DVD race because I think it would be a waste of time at this point. This is a disclaimer for any specifics I mention - they are only approximations.

    I feel that 100GB should not be viewed as realistic. 4 layers are not practical unless they are introduced from the get-go. I offer current DVD-R dual-layer as an example. It has 2 major cons: 1) it is currently roughly 10-30 times as expensive as single layer DVD-R for roughly double capacity, 2) it does not burn anywhere near the speed at which DVD-R SL burns (fastest is 4x vs. 16x, realistic is 2.4x vs. 12x). The only people who spring for it are the ones that use them for video backups. Being that I only back up data, it would be of no use to me even if one of the two above points were to go away.

    Therefore, lets say a single layer disc will have 25GB. Nothing wrong with that, but by the time it is introduced it will be "just enough" to satisfy the needs of the market.

    I feel that backups will still be lagging for a while into the future. Don't believe the hype, and don't feed the trolls.

    1. Re:From the trenches by StikyPad · · Score: 2, Interesting

      In all fairness, CDs were leaps and bounds ahead of contemporary storage media.. Hell, CDs held more information than my HDD when they started becoming popular, and the only other common removable media was a 1.44MB floppy (or not-as-widely adopted 2.88MB). As far as ubiquitous portable storage, CDs held massively more information than their previous generation counterparts. (I'm not counting Zip drives, or other proprietary magneto-optical storage, since they really weren't as widespread as floppies and CDs). DVDs only hold several times as much data as a CD. If there had been an equal leap forward after CDs, you'd see discs (or whatever) with 340GB capacities.

  17. Re:Multiple Standards by aslate · · Score: 2, Interesting

    The industry would benefit more from having ONE SINGLE TRUE UNIFIED STANDARD as opposed to a couple of standards, which would confuse people.

    The industry as a whole would benefit, we all know that. However, who should back out? The one that steps down loses everything and the other reigns supreme. In the DVD +/- war, neither + nor - won, and both formats are about. None of the producers stepped down, everyone "won" as opposed to one side losing.