Blu-ray movies that were backed up do not work anymore.

[Highdef007]

I need some answeres I had backed some Blu-ray movies to blu-ray discs and now they do not work. All the blu-ray discs are made by Memorex BD-R 25GB. I purchased these disk around 2008. I have also backed up other movies to other kind of Blu-rays and they did not go bad. Is it even silly of me to even ask this question because you guys will say I bought a bad batch of discs? I bought allot of discs maybe 100 discs. All most 98% are bad. Is not like I did not know what I was doing because I did and do know how to back up.
I just need some advise thank you.

[iSeries]

Hi,

Bad discs definitely, I've had the same thing happen to me. A couple of years ago I backed up all my blu rays to Traxdata BD-25's. 6 months later some wouldn't work. A year on virtually none of them would work. However all the AVCHD backups I had done to DVD-9 still worked and and still do work.

I re-did all the backups and I now keep them all on external hard drives. Maybe BD-R's are still too immature.

[poisondeathray]

Have you tried on another player ? (go to a friends' house)

Does it work on the PC playback ?

Have you updated firmware recently (sometimes this can diminish compatibility on some models) ?

What condition did you keep the discs in? Did you play "frisbee" or store them carefully ?

[7ekno]

I bought allot of discs maybe 100 discs. All most 98% are bad. Is not like I did not know what I was doing because I did and do know how to back up.


All "Dye" based media DEGRADES ... cheap dyes can degrade in months, the more expensive dyes in years, but they all degrade ...

Your problem has nothing to do with "knowing how to backup", it's more a problem of "not understanding write once media" ...

Optical write once media should never be considered a long term storage strategy ...

7ek

[Ghitulescu]

... I had backed some Blu-ray movies to blu-ray discs and now they do not work. All the blu-ray discs are made by Memorex BD-R 25GB. I purchased these disk around 2008. I have also backed up other movies to other kind of Blu-rays and they did not go bad....
You answered yourself I think :)

All "Dye" based media DEGRADES ... cheap dyes can degrade in months, the more expensive dyes in years, but they all degrade ...

Your problem has nothing to do with "knowing how to backup", it's more a problem of "not understanding write once media" ...

Optical write once media should never be considered a long term storage strategy ...
If one thinks so, then not even the pyramides are suitable for such a task :). It depends on what one considers to be an "archival longevity". For most people even 1 year is probably too much.

Many offices, medical labs and so on store their data on optical media (pro discs, 3-10x more expensive than consumer spindles), as the magnetic tapes are extremely slow in restoring data and their longevity is also questionable. The MODs are still in use, but they hold relatively small data. And no other format than DVD can be directly played, which limits the choices of building of a "functional" archive.

A good compromise is the DVD-RAM, which withstand well the time and may be played in compatible players (Panasonic, JVC, LG).

[laserfan]

I recall that Verbatim made/makes "archival quality" DVD-Rs (quite expensive) but don't know if they have subsequently made similar BD-Rs. Will have to do some searching...