Question : Problem: Backup strategy for 7 year retention period before restore

We need a high capacity (200Gb) and universal backup for a project where the restore could likely be in about 7 years time.
When I say universal I mean that in 7 years the technology will still be around to restore it.

Personally I am all in favour of backing up to a USB hard drive and storing it for all this time but I dont know if there are any potential problems with this. The bearings/mechanisms in the HDD wont seize up with a lack of use will they?

Are there any pitfalls with this type of storage?

Thanks.

Answer : Problem: Backup strategy for 7 year retention period before restore

if you want to be sure you can restore the data, i would :
-keep the technology and software needed (motherboards, disk or DVD drives, software needed)
-then backup to disks - i would prefer ide or sata disks right now, NOT usb (because it adds an interface layer, that seems to go bad quite frequently)
-to be sure about the data, keep it in 2 places at least, and rewrite the data once per year