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sigh*
hard drives as reliable as they are, have multiple failure points, they are sensitive to EM fields, a fried chip on the controller will put you out of business and a mechanical failure will destroy swathes of data
as archival format, dvd/physical media is superior, they have built in error correction (when was the last time a small scratch on a dvd actually prevented you from accessing the data) the majority of issues we see with physical media is that the specifications have too much flexibility (the optical characteristics of a media may not be within specs for a certain drive reader) which is usually remedied by purchasing quality media that have stated shelf life and deterioration rates, they tend to be more expensive then your cheap run off the mill disposable media but they serve a different purpose
the problem is that we are judging physical media based upon the poorest quality sample we know rather than what it is actually capable off
having used both a run off the mill chemical dye based disc and a gold based black substrate (filters damaging UV and broad spectrum light), i can tell you the later can happily maintain data integrity for over 8 years (i have archival data from 8 years back that has no problems reading and this is on a cd-rw, which is a significantly lower performer then your cd-r), which bring me to the final point, how many hoops would you have to jump through just to read data of an IDE UMA33 hard drive, where as your cd-r disc (from same time line) can be read in any modern dvd drive (providing the media integrity is still in tact)
the format is good, it's just very dependent upon the quality of media used
hard drives as reliable as they are, have multiple failure points, they are sensitive to EM fields, a fried chip on the controller will put you out of business and a mechanical failure will destroy swathes of data
as archival format, dvd/physical media is superior, they have built in error correction (when was the last time a small scratch on a dvd actually prevented you from accessing the data) the majority of issues we see with physical media is that the specifications have too much flexibility (the optical characteristics of a media may not be within specs for a certain drive reader) which is usually remedied by purchasing quality media that have stated shelf life and deterioration rates, they tend to be more expensive then your cheap run off the mill disposable media but they serve a different purpose
the problem is that we are judging physical media based upon the poorest quality sample we know rather than what it is actually capable off
having used both a run off the mill chemical dye based disc and a gold based black substrate (filters damaging UV and broad spectrum light), i can tell you the later can happily maintain data integrity for over 8 years (i have archival data from 8 years back that has no problems reading and this is on a cd-rw, which is a significantly lower performer then your cd-r), which bring me to the final point, how many hoops would you have to jump through just to read data of an IDE UMA33 hard drive, where as your cd-r disc (from same time line) can be read in any modern dvd drive (providing the media integrity is still in tact)
the format is good, it's just very dependent upon the quality of media used
drumsrule786
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By the time we release these I wouldn't be surprised if 3-4TB hdds are available for $50-100. Plus you don't need an expensive reader for hdds. The only thing I see these as useful for is for scientific research that requires a ton of data to be stored.
techguy378
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[citation][nom]amigafan[/nom]Peek into the future:Oh shoot... My 500 GB holodisc got scratched a little and now 90 GB is unreadable (Yes I know it will come in the protective cassette of some kind (it won't be just "naked" disc) but that will add to bulkiness. Portable hard drives (2.5'' which power themselves via USB) are still FTW![/citation]
Say what? It comes in a cassette like DVD-RAM did? So this means that holographic disc players need a radical redesign that may offset the cost savings.
Say what? It comes in a cassette like DVD-RAM did? So this means that holographic disc players need a radical redesign that may offset the cost savings.
thrasher32
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I'm with the optical-media-are-obsolete crowd I guess. I just can't get excited about a disc that spins and can get scratched up easily. To me, solid state is the way of the future, one day we'll all look back at mechanical and optical drives and just laugh....
People missed the important part of this technology. There is no metal layer in a holodisk. This means the data will not deteriorate over time like it does with CDs and DVDs. A holodisk is for LONG TERM storage. I am not a fan of optical disks, in fact I hate them. I am a huge fan of SD cards and solid state drives. But I have to admit this holodisk tech has potential. If they can increase the depth(and thus the layers) and upgrade the blue laser to a violet or ultra violet laser, they will have something phenomenal. I am imagining a non removable 2 inch spinning sphere instead of a thin disk...with multiple lasers reading and writing simultaneously while orbiting the sphere...and a million terabytes per sphere or more
btw, 8 years is nothing for archiving. floppy disks and tape drives maintain reliable data for 40 years or more.
btw, 8 years is nothing for archiving. floppy disks and tape drives maintain reliable data for 40 years or more.
[citation][nom]doron[/nom]My personal experience tells a different story. For me, hard drives are way more reliable than any optical medium I had my data stored in, and hard drive's read and access speeds are much higher and they're also easily rewritable and not prone to losing as an optical disc. That said, holo discs will have a place in this world in the form of lossless video and audio for better movie playbacks and some mission-critical backups for some, but comparing those to hard drives is apples and oranges.[/citation]
my experiance with hdds is that of someone in a family.
i have a 5gbhdd and a 300gb hdd not in use, and were for storage (300) and old pc (5) and both were destroyed by little brother (13 years old) because he wanted to see what was inside.
i wont claim to know how long a hdd can last, because the 5gb was going on over something like 10 years and still running. and i know they are faster, and good for storage of things that are constantly changeing.
but with dvds, i FAR prefer them over hdds, because i had allot of hdds fail on me, but i never had a dvd fail on me unless it was burnt wrong, or it was damaged.
also im looking at failure loss.
1dvd=about4gb
1hdd=up to 3tb
granted its easier to store things on a massive hdd, but if it fails you are sol for everything on there, if a dvd fails its only 4gb, apposed to up to 2tb of data loss.
if bluray or holo come down in price to about 4 cents a gb, about what dvds are at or were at when i bought my second 500 pack, it would be a worth while investment, just because of how much info they hold, it would be easy to burn it all off, verify it, than burn it off a second time for redundancy.
now, uncompressed video? you aren't talking about us getting a movie, and its uncompressed are you? you are talking about storing raw video data, like off a dvr, good camcorder, and such.
this format would be best used for when we take the next step and increase hd resolution again, or for when we get 4k home use items.
my experiance with hdds is that of someone in a family.
i have a 5gbhdd and a 300gb hdd not in use, and were for storage (300) and old pc (5) and both were destroyed by little brother (13 years old) because he wanted to see what was inside.
i wont claim to know how long a hdd can last, because the 5gb was going on over something like 10 years and still running. and i know they are faster, and good for storage of things that are constantly changeing.
but with dvds, i FAR prefer them over hdds, because i had allot of hdds fail on me, but i never had a dvd fail on me unless it was burnt wrong, or it was damaged.
also im looking at failure loss.
1dvd=about4gb
1hdd=up to 3tb
granted its easier to store things on a massive hdd, but if it fails you are sol for everything on there, if a dvd fails its only 4gb, apposed to up to 2tb of data loss.
if bluray or holo come down in price to about 4 cents a gb, about what dvds are at or were at when i bought my second 500 pack, it would be a worth while investment, just because of how much info they hold, it would be easy to burn it all off, verify it, than burn it off a second time for redundancy.
now, uncompressed video? you aren't talking about us getting a movie, and its uncompressed are you? you are talking about storing raw video data, like off a dvr, good camcorder, and such.
this format would be best used for when we take the next step and increase hd resolution again, or for when we get 4k home use items.
[citation][nom]back_by_demand[/nom]It's all about cost per GB and convenience of access, weighed against the current top optical solution hard drive are massively cheaper per GB and are re-usable and the transfer rate is a lot faster.By the time a commercially available 1TB holograpghic disk is available there will be 10TB hard drives knocking about and a 1TB drive will be bargain basement stuff.Chances are SSDs will be up in that kind of storage size by then too and a new connection medium other than SATA will need to be used to cope with the undoubted fantastic speeds of the day and if they have any sense it will be as simple as eSATA is now where a 2.5" drive can be plugged in like a big flash drive.So it's good that they are researching the medium but there is a lot more money, time and brains going into SSD and HDD tech and it is advancing much faster.Bluray will be the last mainstream optical media.[/citation]
look at it more realistically. this will be a commercially viable option sooner than ssds becoming reasonable priced where normal people look at them over a hdd.
personally, i believe any disc tech can easily become less than 1$ per disc, once it matures.
this tech will be what drives the higher than current hd video, so it will be used allot because honestly, at least in america, out internet wont be up for downloading a 200gb minimum movie, or streaming even compressed, a 4096 × 2304 at anything the looks reasonable for a long time, i mean im looking out there a good 10 years.
so the cost will go down to a reasonable price.
look at it more realistically. this will be a commercially viable option sooner than ssds becoming reasonable priced where normal people look at them over a hdd.
personally, i believe any disc tech can easily become less than 1$ per disc, once it matures.
this tech will be what drives the higher than current hd video, so it will be used allot because honestly, at least in america, out internet wont be up for downloading a 200gb minimum movie, or streaming even compressed, a 4096 × 2304 at anything the looks reasonable for a long time, i mean im looking out there a good 10 years.
so the cost will go down to a reasonable price.
itchyisvegeta
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With our national debt in the tens of trillions, it is good to see how our tax money, used to subsidize corporations with government contracts, is being spent.
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zertam
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I realize solid state is the popular trend, but I'd really like to see optical disc's go small form factor - those little 80mm discs. With this blue-ray you get 7.8 gigabytes of space on a single layer, and obviously twice that for a 8cm double layer blueray - with the technology in this article, I'd expect the capacity of a 8cm disc would be around 156GBs.
What I'd really like to find is a 8cm only optical drive which would be interesting for a small form factor stand point - and yeah, I realize nearly all software and media is solely distributed on the larger 12cm discs which would make an 8cm drive seem rather useless right now.
What I'd really like to find is a 8cm only optical drive which would be interesting for a small form factor stand point - and yeah, I realize nearly all software and media is solely distributed on the larger 12cm discs which would make an 8cm drive seem rather useless right now.
@loomis86
ive actually used both floppy and tape, even with good quality media, i was lucky to get a floppy to maintain data integrity after 1 year (and was not amused to not be able to restore my data), tape was aprox 5 years, they are stated to last 40 years but actually shelf life is far from ideal unless your storing them 15 degrees with a 5% humidity in a hermetically seal EM shielded container, cd-r was alot more robust and happily survived 8 years on a shelf collecting dust on a mantle that was subjected to temperature variations as well as the odd bump scratch and drop, if i were a betting man im pretty sure it could easily survive another 5 years of similar abuse.
You have to remember the way magnetic media works is very sensitive, the data is erased upon read and has to be instantaneously rewritten to the media, disruption in this cycle means lost of data
ive actually used both floppy and tape, even with good quality media, i was lucky to get a floppy to maintain data integrity after 1 year (and was not amused to not be able to restore my data), tape was aprox 5 years, they are stated to last 40 years but actually shelf life is far from ideal unless your storing them 15 degrees with a 5% humidity in a hermetically seal EM shielded container, cd-r was alot more robust and happily survived 8 years on a shelf collecting dust on a mantle that was subjected to temperature variations as well as the odd bump scratch and drop, if i were a betting man im pretty sure it could easily survive another 5 years of similar abuse.
You have to remember the way magnetic media works is very sensitive, the data is erased upon read and has to be instantaneously rewritten to the media, disruption in this cycle means lost of data
Gin Fushicho
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Only as fast as Blu-rays? I have to wait 2-4 minutes for some movies to load. How long am I gonna have to wait for 500GB's of data to load? They are going to need to make these significantly faster.
my understanding of holographic technology is they will include a very ridiculous amount of data redundancy because of the nature of the hologram. therefore damaging the disk as long as you aren't shredding or burning it will probably leave it able to still access your data
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