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The duo wants a 300 GB capacity disk by 2015

Sony and Panasonic have announced that they have signed a basic agreement that will see them jointly develop a new standard for professional-use optical discs. The objective of the two companies is to expand their business for long-term digital data storage by developing an optical disc with a capacity of at least 300 GB.
The two companies are directly targeting businesses that need archival storage including motion picture, broadcasting, and cloud service industries.

Optical discs are likely to remain a preferred long-term storage option because the discs are dust- and water-resistant. Another significant benefit of using optical discs is that they allow inter-generational compatibility between different formats -- that means older optical formats can be read on current generation optical drives.
Sony and Panasonic hope to make the 300GB optical disc available by 2015. 

Source: Sony

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RE: How cute
By ammaross on 7/29/2013 1:11:20 PM , Rating: 2
Flash most certainly is volatile, just not within the time spans that the term is normally used for. If you left a flash drive to rot on a shelf for five years, the charge in the cells will likely have diminished/depleted by then. Wear leveling does more than not over-using flash cells; it cycles stagnant data to "refresh" the charge, to keep it from decaying beyond readability.

RE: How cute
By Reclaimer77 on 7/29/2013 2:10:32 PM , Rating: 2

Flash is non volatile. I don't know wtf you people are talking about.

If you left a flash drive to rot on a shelf for five years, the charge in the cells will likely have diminished/depleted by then.

????, wrong.

RE: How cute
By zephyrprime on 7/29/2013 2:38:05 PM , Rating: 2
Flash relies on floating body charge (static electricity stuck in a transistor). There is no was it would not have discharge after a few years of no use. I've had cdrw go bad after a couple of years and static electricity is much more volatile than crystal phase.

RE: How cute
By Reclaimer77 on 7/29/2013 2:39:46 PM , Rating: 2
That doesn't mean it's "volatile" storage! Why don't you people look up what "volatile memory" actually means?

RE: How cute
By bug77 on 7/30/2013 7:45:10 AM , Rating: 2
Apparently it takes more than a couple of links to get something to your head. Here's one more:

And a layman's test: power it off then power it on again. If it wasn't erased, it non-volatile.

RE: How cute
By Jaybus on 7/30/2013 10:58:27 AM , Rating: 2
Non-volatile means that it does not need a battery or other power source to retain its data for some reasonable amount of time. The difference is the amount of time (shelf life) that the flash can remain powered off before losing data, There are several kinds of flash and coding schemes. NOR flash has a longer shelf life than NAND. SLC coding has a longer shelf life than MLC coding.

The problem is, even NOR flash using SLC coding has a shelf life of perhaps a decade. There simply is not at this time any long term digital storage medium to compare to even mediocre quality ink on paper, let alone engraved stone and clay tablets that have lasted thousands of years. A long term digital storage medium is sorely needed. The only choice at this point is media rotation.

RE: How cute
By CaedenV on 7/30/2013 10:49:21 AM , Rating: 2
Being 'non-volatile' in flash simply means that it does not loose data immediately upon power loss (like SDRam or other memory storage devices). However, the life of a shelved SSD is MUCH shorter than the shelf life of an optical disc. Just a few years ago it was not uncomon to hear about file corruption occurring in SSDs after just a few months of not having a power source, and even current gen drives would not likely last much longer than a year or two. It is simply not a good archival storage medium.

Meanwhile, an optical disc can last a very long time in a dry low oxygen environment, which makes it a great archival medium, which is why a 500GB disc would be great for enterprise backups which are still typically done on tape because that is the next best thing.

The interesting thing of note here is that there was no mention of this being used for the consumer market. Blu Ray is the last optical standard that most of us will ever see (and good riddance!). Future movies, games, and media that will not fit on BluRay will simply move to cloud distribution, or (like movie theaters) HDD distribution.

RE: How cute
By Fritzr on 7/31/2013 12:18:47 AM , Rating: 2
Flash is non-volatile in the industry meaning of the term. Remove the power supply and the memory does not change state.

Flash is NOT archival in the industry meaning of the term. The stored data does decay over a period of months to years if not refreshed.

Archival storage is both non-volatile & archival. This means that it is not affected by power loss and retains data without refresh for periods of multiple decades at a minimum.

Currently the preferred archival storage is magnetic tape (9 track being the most popular)

Mag-tape requires a controlled environment storage to prevent media rot (CD, DVD, BD & HVD all share this problem)

A properly managed data warehouse will maintain multiple copies of each piece of stored media and will do error checks and refresh of stored data at intervals based on the experienced decay rate of the stored media. Doing a refresh every 10 years for instance would mean doing a test and copy of approx 0.83% of the stored data per month.

For those who own physical CD, DVD & BD there are image copiers that will create a digital DRM'd disk that retains the publisher's encryption unmodified and can be used to create a new physical 'protected' disk with an ISO burner.

If you are not experienced with this kind of software, you might wish to begin with Slysoft's AnyDVD and related packages. This is an expensive package, but is cheaper than replacing out-of-print disks and is easier than learning to use the free/low cost alternatives (currently there appear to be no free BD solutions, but there are several that are fairly cheap)

RE: How cute
By sheh on 7/29/2013 4:40:38 PM , Rating: 2
Any refs on wear leveling including refresh? SSDs or also USB flash/SD?

RE: How cute
By Jaybus on 7/30/2013 11:05:14 AM , Rating: 2
Here is a paper from Texas Instruments

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