When DVDs Become Unusable
Posted by John-Erik | Filed under Uncategorized
Over about 120 degrees, DVDs and CDs become permanately unusable. For tape it’s around 400. Tapes are not susceptable to scratching, and tapes have verifiability. Tapes are now far more resistant to magnetic fields, and are usually stored in a fireproof safe anyway. Tapes can do volume spanning (DVDs cannot), tapes can use hardware compression, tapes can autoload more easily, tapes included built-in error protection … need I go on?
If a business wants to do 2 GB backups, they can buy a DDS2 drive for around $70 and then buy 15 tapes and backup on a two week rotating schedule for $100, no need to put monthlies on DVD-R and alternate out DVD-R and DVD-RW. The DDS2 tapes and drives will also last longer than the DVD discs and drives.
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