On 12 Mar 2011 at 14:53, Teo Zenios wrote:
I have used DDS DAT for years, currently trying out
DLT and AIT2
drives (nice to have a 50GB native tape). While I have 100's of burnt
CDs that are 15 years old by now, I don't think DVDr will be as good.
And I still mess around with MO drives for my old gear, picked up a
few more drives in the last year incase mine fail.
I'm not so sure about CD-Rs, myself. Over the years, I've taken
pains to buy Mitsui (MAM-A) Gold media for my backups. About a month
ago, I pulled a 5-year old CD out to answer a question that I had.
The thing would not read--citing "unrecoverable" errors. Mind you,
the CD-R had been recorded, slipped into a jewel case and left in a
temperature- and humidity-controlled environment for that time. The
failed read was perhaps third read for the CD in 5 years.
Fortunately, I still had the data on an old hard disk.
CD-R as archival medium? I don't think so. DVD-R? I'm even less
optimistic.
I've had better results with DLT and QIC (for QIC, close to 30
years).
--Chuck
P.S. Anyone remember the short-lived Kodak warranty on their floppy
media that offered to recover lost data at no cost should it be due
to a media failure? That didn't last long...