Quote:
Originally Posted by Great68
What's the longevity of a BD-R disc? Because if it's anything like a DVD-R, it would be a pretty unreliable backup (I have DVD-R's that were unreadable after a year).
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BD-R spec are relatively speaking more complicated than DVD-R. Making them pretty good for storage. The first BD-R I recorded was almost 2 years ago when we switched to BD-R from DVD-R. It still plays fine and no CRC error.
Granted you have now both HTL and LTH type of BD-R on the market. If you want the best compatibility across different readers/players, go for HTL, it's a bit more expensive but worth the trouble if you are looking for the best compatibility.
Quote:
Originally Posted by John
I gave up backing up to optical discs long ago. If you can buy 25GB Blue Ray blanks for $1, that's 4 cents per GB. Hard drives cost 6 cents per GB, and can be reused over and over. It's also about 10 times faster to backup to hard drive.
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That's only possible if you are not backing up with off-site requirement. The data I need to backup comes to 12~20GB per week and for every month we send them away to store it in headquarter where they are kept for 7 years and then destroyed after that. (public company's requirement)
HDD are still very vulnerable to vibration shocks (with the exception of SSD) and for critical data backup, they are not ideal and the weight and dimension make then difficult to store and transport. You could toss around a BD-R without worrying the data might go wrong, not exactly the same thing to be said to HDD.