Roger, I'm absolutely with you. But why copy to a HD and not burn DVDs instead?
They are cheap, cheaper then HDs and they do rarely fail. Burn three (3) of each card
and if you use big cards burn A1, B1, ... A2, B2... A3, B3...
Toast for example does split big cards so that essential files are not chopped into
several pieces but distributed onto separate DVDs.
Security: More then two DVDs never fail at the same time. The remaining DVD is
good to make a one ore two copies of to replace the bad DVDs.
Storage: Store them at a place with CONSTANT LOW temperature (5° C max ),
NO light and constant LOW humidity (less then 55%). That is how big archives work.
No need to re-invent that wheel again.
Pe.
Which version of Toast are you using? I'd like to know more about how Toast spans big cards. It does it without modifying the PRIVATE folder structure? I need to test this out..........
Another good suggestion is to burn the A/B/C copies on different media brand/lots.
PS: I have seen pretty serious arguments against hard drives for long term data storage... Check this article out from Larry Jordan