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1) I migrate all the data to a new media after 10 or 13 or 15 years the count of the years starts from the year of burning the data on the disk or the count of years starts from the date of manufacture of the DVD?
2) What are the highest humidity and temperature conditions every day to estimate 15 years of expectation? |
:wall1::wall1: I should have heeded the warnings. I give up.
Erich |
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So unused for 10 years = 5 years aged. This is not overly scientific, but is based on anecdotal evidence from past 15+ years. And again, aggressively conservative, especially since you basically live in my temp/humidity of my garage or attic. ^ That was a good question. :congrats: But this one, not so much... :smack: Quote:
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40ºC 80-90% would be the correct for optical media DVD live 15 years? 25 ºC 50% is 30 or 50 years |
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Date bought = 2016, about 2 years ago, so let's say aged 1 year. It may actually be more like a curve, no real aging for 1st 5 years, but that's probably too complex for now. I should probably make a new guide for longevity. (Some folks here give you a hard time for repeating yourself, which is not good, but you do ask decent questions at times.) I don't care to answer temperature questions anymore. Re-read my past posts on that topic. When making a longevity guide, I'll consider doing one that has more granular temp/humidity quotas. But I can't do that for a while. |
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Could you please create a new estimate of approximate longevity for my discs? I bought spindle of MDisc DVD Verbatim on the Amazon and I bought spindle of DVD-R Verbatim AZO on ebay both at the end of 2016 so I burned the discs in the beginning of 2017 but I do not know the actual year of manufacture of the discs on my conditions of storage I calculated with digital hygrometer in house temperature variations 30 to 35.7ºC and 45 to 67% RH on days without rain on a few days of rain in the year the temperature between 28-29ºC and the high humidity, these are all the information that I own it but I do not know how much time the optical discs mdisc dvd and dvd-r azo verbatim will live in these conditions, i store in black cases of dvd and cardboard box |
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2) I bought the discs in 2016 and burned it in the beginning of 2017, the count of years is made from 2016? |
gamemaniaco:
YOU ARE A NON-PAYING (FREE) MEMBER. Forum rules state that non-paying members have lower priority for responses than paying members and it may take days for staff to respond. But more to the point you were warned by forum staff not to ask the same question repeatedly. Several forum participants have already suggested you should be banned. As an third party observer it seems to me you stand at risk. Read over your past several years of related posts/threads. Print the threads out. Find someone of average intelligence to translate them into your native tongue so you can understand them. And no matter what you do, do not count on the optical media lasting beyond 13 or so years. Some may fail before that. As for the M-DISC. The conclusions I have read run something like: 50% of discs will still be readable after 1000 years (which also means that 50% will not be readable) 95% after about 500 years. 98% after say 200 years 99% maybe after 100 years All this assumes no physical abuse to the media including disruptive thermal shocks. The bottom line is does anyone beside you really care about what you have on optical media (sounds a bit like bootleg/pirated copies of games)? If not just plan for how long you think you will continue to live by following the suggestions provided to you in the many threads you started. |
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Oh wait, if he's banned here, he'll just show up at Videohelp for the 5th, 6th, 7th time! :mad4: |
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I bought discs in 2001 that are still fine. Good PVC, MXL, TY, and others. I won't reburn. That data was along ago ripped or copied to HDD, and those HDD backed up, and backed up again. Some data yet again put on BD-R, and stored in a safe. Confuscious say: Never pissith off the mod whoth havith the bannith power. And ye are close. Capiche? I'm nice to you, but you seriously have to stop asking the same sh!t over and over again. |
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I will wait 15 years to make new copies and I think that my storage conditions 30-35.7ºC 45-67% RH on days without rain are good conditions for this estimate 15 years Do I need to find out the year of manufacture of the dvds to calculate the remaining years of 15? |
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Is it true that you have burned DVD-R discs in 2001 that are still good? What is the temperature and humidity of your region and what did you do to these discs still good? |
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In the past 20 years, I've been in 4 climates - hot semi-dry/humid, 2 years - warm dry, 3 years - cool dry (cold to me!), 6 years - hot humid, 6 years - dry was about 30% RH average - semi was about 50% - humid is often 95%, year round - Probably 6+ months out of the year was at/under 50 degrees F for the cool climate. - But hot/warm is about 9 months of 75-95 F, 3 months in 40s-60s F. But those are outside temps. Some hot/cold and humid gets in, but AC + heat means temperature controlled. Now then, part of my media research involved storing discs outside, in attics, garage, and outbuildings. Mostly CD-R, pressed CD, pressed DVD, but some varied DVD-R/+R/-RW/+RW as well. The RW all bit the dust, the good DVD-R/+R all held up as expected. Marginal failed. |
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Do you have any special care when storing the discs so that moisture and heat affect the disc in a minimal way? Are you a great optical media student? |
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BTW, if powatrin is you as I and others suspect posting at videohelp, be prepared to be quickly banned yet again! @lordsmurf I apologize if I'm overstepping my boundries with what I post below, but I take great offense when ANYONE questions your knowledge and understanding of the topics you respond to. @gamemanico *Taking deep breaths to calm down* I don't know if you've read this, http://www.digitalfaq.com/forum/news/9242-years.html , but you (especially) should be so grateful that lordsmurf is still around to answer your questions. This is one of the reasons I'm so supportive of him here and at videohelp. I remember when he was absent from videohelp during this period and I (and so many others there) were so grateful when he returned. I don't always agree with him and he's mellowed out a lot over the years, but a he's a truly knowledgeable video guru and usually right! He didn't talk about it in the thread above, but in addition to almost losing his life, he was left with very large medical bills (he talked about at videohelp, as I recall only because it was brought up, either by myself or someone else) that he's probably still paying today. The fact that (to my knowledge) he didn't post about it here or at least doesn't bring it up again shows how much of a truly admirable person he is. As has been mentioned, the least you could do is join as a premium member to show him the respect and appreciation he deserves. It comes out to pennies per post you've made here. -- merged -- -- Rethinking and rereading your post, I can see you probably meant it as a compliment, "Are you a great optical media student?", as in "You know a lot about optical media?". My apologies if that was what was meant. :salute: |
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Silica, I guess, but it spoils after a time. Cardboard has moisture absorbing properties, like a poor man's silica (and I actually use it to pull cigarette stink from paper, works well for that). Those dehumidifying cabinets are interesting, but that probably intended for a room that's air conditioned and/or heated. Quote:
I've consulted with law enforcement, archivists, media companies, and others over the years. And in fact have given guest lectures or interviews to students, where the topic included optical media. Only 1 student was deep into optical media, and I gave her a lot of documentation I had at the time, down to unused patent filings. Also some funny stories, such as "naked-geek" on VH, or the "the digital dolphin" (aka "dolphinius rex") who was a real life version of Comic Book Guy from The Simpsons (seriously!). Quote:
Rant: We try to keep politics off this site, but my experience is a perfect example of why this country needs single-payer healthcare, like almost every other modern civilized country. For a person to have a catastrophic life-altering health issue, only to be given a 6-figure bill when eventually discharged from the hospital, is insanity. /rant Quote:
Not with clickbait and plastering ads, but with the memberships and donations. |
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The DVD format has been abandoned and does that mean that in 10-15 years it will not be possible to read and burn CD / DVD / MDisc DVD? Silica gel saturates fast and needs changing at all times and dehumidifying cabinets are expensive and unfeasible, storing the cases of dvd inside enclosed cardboard boxes is a serious problem of humidity? the cardboard box I know it protects from light and I put several cases of black dvd inside it preserve optical media naturally in the correct room, do you use silica? |
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