[snlsn]

I have an OWC mercury external drive I had used for some time to backup using SuperDuper. I never once needed to do a restore.
I recently purchased a Western Digital myBook drive and started using it for backups.
Today I discovered I did in fact need to restore my computer, which is the point at which I also discovered the computer won't boot from the WD drive. Nuts.

So, my situation is this:
I have an out of date backup on a drive I can boot from.
I have a current backup on a drive I can't boot from.

My question is this:
If I copy the files from the latest backup on the WD drive to the OWC drive, will anything get lost (meaning any crucial invisible files) in that copying process? My thinking is that if I can do this then I can boot from and perform a restore using the current data. But I don't want to make the situation worse if a straight copy from one volume to another will omit some vital data.

The computer in question is a PowerBook G4 (powerpc) running OS 10.4.11

Thanks for ANY advice, from a slightly anxious
Steve