Alex said:
Just completed, and no - it returns no bad sectors. Everything
appears to check out...
Temperature, humidity and other odd ball things can come into play with
something like that. I'd replace the drive if all you state is true,
and use the old one for "extra" backups, like you (should) do using
DVDs. Then if/wher it goes belly up again just toss it out and go back
to burning the DVDs from the good drive. External drives are no more
secure/reliable than any other drive; thus, the caveat that one always
should have at least two copies of their backup, preferably three, with
the 3rd copy kept off-premises for fire/theft/etc. protection.
HTH
Twayne