SWISSTEC DEGRADE throught time

[canadateck]

I Also have had Princo/Ritek discs deteriorate in less then 6 Months,Some were DVD Backups and some just for Data Storage.

[lordsmurf]

Lordsmurf, have you ever considered the fact that your opinion does not equal fact? .

This is not my opinion. It's based off many different studies by many reputable groups. Some of it is simple information of the chemicals and techniques. If anything the "my data disappeared" is an unproven opinion. Most often, simply a hasty conclusion. Reminds me of "amputation medicine" from the old days. Or medieval brain surgery to "let the evil spirits out" when somebody complained of a headache.

As usual:
- USE GOOD MEDIA
- VERIFY THE CONTENTS USING SEVERAL METHODS
- STORE PROPERLY (NO LABELS, WALLET, etc)

Almost all people complaining of "disappearing data" failed to perform one of those three simple steps. In fact, the ONLY PERSON I have seen to date to insist ALL THREE steps were met is Craig. His situation is one worth investigating.


_____________________


Samples of hasty conclusion, wrong use of empirical data:

Example 1
Disced burned. Months later, discs cannot be read.
Conclusion: My data disappeared.

Example 2
John likes bananas. John like blue.
Conclusion: Bananas are blue.

Silly, huh? Quick conclusions are rarely the correct ones.

[steve2713]

Many of these people that are having these problems have already specifically stated that they were stored in dvd cases, at proper temperatures, no labels used, and they verified the discs when they burned them.

Going from having all the data verified with zero errors to having completely unrecognized discs within a few months, what is your answer for all of these people then? My Princo discs were stored upright in dvd cases, stored at between about 67-76 fahrenheit, no high humidity, zero sunlight, verified with no errors and perfect transfer rate tests at the time of burning, and now have read errors on all of my many DVD drives.

Again, what is your answer for all of these people that have stored these discs properly?

[steve2713]

Almost all people complaining of "disappearing data" failed to perform one of those three simple steps.

I noticed this, and I read back and 2 other people in the thread said they stored them upright in DVD cases at room temperature, and the discs were originally read fine. Whether they used labels or not, I don't know (I doubt it...). I've never used a label on a disc in my life, so that rules out labels being an issue with my discs.

[lordsmurf]

- I would want to examine the cases to verify no warping occurs.
- Then question the verification methods. Watching is the primary method to verify, BACKED UP by software verifications. PI/PO and other tests alone are worthless. Almost NOBODY ever does all of this. It would take forever, for one.
- You also have to question the handling. Was the disc EVER bent when removed? Could cause micro-fractures in the materials. Any scratches?

And no, most people DO NOT specifically state any of this. They simply claim "my data disappeared".

Sure, it'd be great to find a disc that REALLY COULD disappear like magic ... Hollywood would love them .... but nothing to date has really proven this could happen. In fact, it always proves the opposite.

Until that happens, we have boogey men with blue bananas.

[steve2713]

Frankly, who cares how it was 'verified'? If the disc played fine beginning to end, or if, as in my case, I did a transfer rate test with not so much as a single spike, and it now is currently littered with errors or even completely unrecognized by any drive, what more proof do you need???

[Nelson37]

I could care less how many charts and graphs are produced by the pointy-heads to "prove" that something is not possible. (It is often interesting to find out who funded these studies.)

An old axiom - Once is bad luck, twice is coincidence, three times is enemy action.

[the.chepstownian]

Lord Smurf - I will happily send you all my remaining Swisstec DVD-R
You can burn to them and read from them possibly for a while and then find in a few months that as SO many people are stating here that they are in fact no longer readable.
I do not believe I mentioned they had magically degraded, just said that they were no longer viable as media.
Do you work for Sky Media per chance ?

[Cobra]

steve2713,

or your opinion is just that, and wrong at that

Can you prove him wrong? If so, feel free to enlighten everyone else.

Cobra

[steve2713]

Yeah, this thread (as well as others with similar issues in other threads here and elsewhere) proves him wrong. WE don't need to be enlightened, it's already been proven to us firsthand with our own discs.

[VamPYR]

This is not possible. It's either bad from day one or good from day one.
You did not test them, or the readers are now dirty.

www.nomorecoasters.com

Not possible? i got 500 pcs BeAll dvd-r 4X silver printable, bought few months ago. this media burn fine, play fine (both standalone & pc dvd-rom), scan fine, rip back to pc no problem (speed 5.x-8.x), just after burned. But whithin 1 week problem start showing up: during 3 or 4 days the whole movie are pixel corrupted during playback and after another 2 or 3 days it completely unrecognize by the player 'cannot be play' (tested in various player).
the disc still can be rip back to pc during 2,3 month (very low reading speed, 0.x-1.x), than it will 'completely' unreadable (tested in various dvd-writer, dvd-rom).
all this disc store in a proper condition. no heat, no pressure on top the disc, not near a wet wall.
i got 400 pcs with data and is gabbage now, 100 left unuse.
have recovered half of my data from this gabbage burned media, is a nightmare! and it possible to happen.

[lordsmurf]

So you're claiming that within a week you had 400 discs magically die? No way. Even if disappearing data was possible, the odds of such a thing happening would be so infinitely obscure that it would make the lottery or Vegas gambling appear to be a guaranteed win. This is definitely a case where something has been missed. I suggest you re-evaluate the situation.

I also SEVERELY question your ability to both WATCH AND SCAN 400 pieces of media within a week. Not to mention, that does not even include the burn time. Something is amiss.

More blue bananas.

[VamPYR]

So you're claiming that within a week you had 400 discs magically die? No way. Even if disappearing data was possible, the odds of such a thing happening would be so infinitely obscure that it would make the lottery or Vegas gambling appear to be a guaranteed win. This is definitely a case where something has been missed. I suggest you re-evaluate the situation.

I also SEVERELY question your ability to both WATCH AND SCAN 400 pieces of media within a week. Not to mention, that does not even include the burn time. Something is amiss.

More blue bananas.

of course it impossible to watch and scan 400 pieces of media within a week, i'm not said i watch 400 in a week (maybe my grammar, english is not my mother language, sorry about the misunderstanding, if any)
i been recovered half of them couples a month ago (rip and reburn it into other media) after i realize the problem. maybe you're lucky enough and dont experience this kind of problem, it doesnt mean it impossible this problem to happend to someone else. i still have this BeAll dvd-r media left, if you want to try it and find out the TRUE by yourself i dont might to send it to you.
The problem of this BeAll 4X dvd-r media had been discussed in cdfreaks forum, see for yourself :
http://club.cdfreaks.com/showthread.php?t=112938&highlight=scan+beall+dvd
regards.

[lordsmurf]

Alright, whatever. The boogeyman strikes again.

FYI: The CDfreaks thread is just complaining about kprobe errors and people that seemingly never tested their media when it was burned.

[hech54]

I just saw a BBC special on recordable media(both CD and DVD). The special was mentioning the newest formats (HD DVD and Blu-Ray) and reps from both camps basically said that the new recordables are just like the old recordables....they are not considered permanent storage and will degrade over time.