How many times can you write into a BD RE?

[kokoko]

A simple question..?

[Marcusarilius]

into a BD RE? into a BD RE? into a BD RE? into a BD RE? into a BD RE? into a BD RE? into a BD RE? into a BD RE? into a BD RE? into a BD RE? into a BD RE? into a BD RE? into a BD RE? into a BD RE? into a BD RE? into a BD RE? into a BD RE? into a BD RE? into a BD RE? into a BD RE? into a BD RE? into a BD RE? into a BD RE? into a BD RE? into a BD RE? into a BD RE? into a BD RE? into a BD RE? into a BD RE? into a BD RE? into a BD RE? into a BD RE? into a BD RE? into a BD RE? into a BD RE? into a BD RE? into a BD RE? into a BD RE? into a BD RE? into a BD RE? into a BD RE? into a BD RE? into a BD RE? into a BD RE? into a BD RE? into a BD RE? into a BD RE? into a BD RE? into a BD RE? into a BD RE? into a BD RE? into a BD RE? into a BD RE? into a BD RE? into a BD RE? into a BD RE? into a BD RE? into a BD RE? into a BD RE? into a BD RE? into a BD RE? into a BD RE? into a BD RE? into a BD RE? into a BD RE? into a BD RE? into a BD RE? into a BD RE? into a BD RE? into a BD RE? into a BD RE? into a BD RE? into a BD RE? into a BD RE? into a BD RE? into a BD RE? into a BD RE? into a BD RE? into a BD RE? into a BD RE? into a BD RE? into a BD RE? into a BD RE? into a BD RE? into a BD RE? into a BD RE? into a BD RE? into a BD RE? into a BD RE? into a BD RE? into a BD RE? into a BD RE? into a BD RE? into a BD RE? into a BD RE? into a BD RE? into a BD RE? into a BD RE? into a BD RE? into a BD RE? into a BD RE? into a BD RE?

I guess I could go on like this all day.. Hope this helps answer your question.

[Rapstah]

His point is that it's a BDRE and not a BDR. Infinite times, I think.

[McBain]

>1000 times. Source: http://www.emedialive.com/articles/r...eid=11423#viia

[JadedRaverLA]

Originally Posted by McBain

>1000 times. Source: http://www.emedialive.com/articles/r...eid=11423#viia

We have a winner! Although, discs made with organic dyes (LTH) I've heard won't be able to be rewritten as many times... when the BD-RE versions materialize.

[kokoko]

In conclusion: Blu-ray can't be used as a virtual-hard-drive of sorts if you want to make it a complete OS

(hard drives have far more than a 1,000 changes in their lives)

[Neo65]

The optical rewritables allow you to prototype a disk before commiting it to the writeonce readonly versions forever.

They don't work very well as a hdd substitute.

Otoh, flash memory also have a fixed number of read/write cycles before the cells go bad. Not everyone knows this.

[tron3]

Originally Posted by Neo65

...

Otoh, flash memory also have a fixed number of read/write cycles before the cells go bad. Not everyone knows this.

Nor do they tell you! Which is why I am hesitant to use USB drives as backup.

Dell has a new notebook which uses a type of flashram hard disk that is supposed to last up to twice as long as a standard hard drive.

[Neo65]

Originally Posted by tron3

Nor do they tell you! Which is why I am hesitant to use USB drives as backup.

Dell has a new notebook which uses a type of flashram hard disk that is supposed to last up to twice as long as a standard hard drive.

The way to use flash and make them last longer is with more redundancy and error correction, along with automatically cycling through different blocks so that the same area doesn't get written and erased everytime.

A reputable nand flash should still last at least 10,000 write cycles. This is reasonable for a temporary archive, but I have doubts about usage as the main hdd device, and certainly not as a memory swap files when physical memory is full. And if you happen to run applications that continuously write and read from disk throughout a day, a particular file can get written to hundreds of times a day by a program.

If you run a web browser, hundreds of tiny cookies or temporary files can be written to the temporary area.

Each icon each smiley on a html page gets saved temporarily before they are loaded and displayed. On a flash, that's easily hundreds of tiny files.

In windows, the registry alone is written to everytime you launch a program, open a file, exit a program.

Conservatively, I think that one year later, many blocks of nand flash can go bad quite easily with any normal use.

[w_tanoto]

Originally Posted by Rapstah

His point is that it's a BDRE and not a BDR. Infinite times, I think.

it's not infinitely. It has life cycle. I know DVD-RW is at about 1000 times.