Another take on media longevity

[MrTate]

I'm about to start a VHS to DVD conversion process which involves something between 2500 and 3500 hours of material, and something between 150 and 300 hours of new material each month. Following this forum I've been able to choose the DVD recorder which suits my needs best and also the best DVD-R brands.

Now, I gave a good look at the longevity issues and I was almost convinced that the only safe way to archive material for a long time (10 years, I'd say) is DVD-RAM. I read it was made for archival, etc. etc. Pretty expensive solution, I'd say, but I need my videos to be there in at least 10 years before I can think of transferring everything to a new format (blue ray or anything that will come). Second option would be RW: from what I read it's better than R. Now, the problem is I found this link which says the exact opposite and looks also super partes:
http://www.itl.nist.gov/div895/carefordisc/disc_care/longevity.html

Anyone can comment on this site? Thank you very much in advance.

[RabidDog]

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[iooi]

Looking at the amount of hours you have to convert, no matter which format you go for there will be something new by the time you have finished, or even got half way...
I dont think there has been proof either way as to how long dvdr's will last for storage as no one has had the disks long enough to fully test in real world terms.
Guess you will just have to bite the bullet and start, pick one brand of disks and stick to them.
So long as you are keeping the original video's you should be safe. I guess you could also back up the files on to hard drives as well for safe storage.

[MrTate]

I figured it will take about 1.5 years to do that at a steady but not rushed pace. Not a big deal, as long as what I have is then usable. The problem is that, yes, I'll be having the originals but only for the past recordings. It would be too difficult once I start using digital media keeping backups of new recordings. What I was trying to understand is if the link posted is correct and rewritable media is actually worst than record once (the opposite, basically, of what I read here and on other forums).

[iooi]

I guess you are kinda stuck between the rock and the hard place..No matter which way you go something could go wrong.
For new stuff that isnt going onto video tape a few hard drives, or dat drives might be a reasonable precaution to take along with a dvd copy.
Guess that depends on just what size your source files are for and what quality they are.
It would seem that there IS NO DEFINITIVE answer as no one has stored dvd disks for 10 years yet...Only simulated the time, and we all know how reliable simulations are......Hence the 2 schools of thought.