While LTO-3/4 tape is more secure than hard disks, you need to know that LTO tapes can be written in many different and often incompatible formats. What I shudder to think is that one may delect a format that may become invalid in a few years, so even if one had a drive, the software to read it may or may not exist.
That’s not the case with hard disks and DVD-Rs or BD-Rs.
I’ve begun to suggest clients Blu-ray BD-Rs to back up SxS or P2 or CF card data from Sony XDCam Ex, Red, Canon 7D shoots. Its neat, one card one disk. As many disks as there are card changes, so the risk of a unreadable disk means only minimal loss of data. Besides, BD-R disks seem to be hardier than some noname DVD-Rs or CD-Rs. And they are cheaper than LTO tapes.
If your media is SD ProRes, 1 BD-R could even hold an hour of video or half an hour od HD video.
One day (probably 2-3 years hence) there will be a 1 Tb optical disk, and that drive will still be backward compatible with today’s disks. Just as I can still read system backups on CD-Rs written in 1993.
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Neil Sadwelkar
neilsadwelkar.blogspot.com
twitter: fcpguru
FCP Editor, Edit systems consultant
Mumbai India