[X4U] OT-backup suggestions for a business

[Crandon David]

I know this is definitely off topic, but a friend of mine needs some 
help. He is a diehard Mac user, but for his pathology lab business he 
is forced to use a PC.

For his business he needs to do daily backups. The backups are full, 
not incremental. He needs media that will hold about 9 gigs of data for 
each backup. He does it Monday thru Friday, each day. The following 
Monday he doesn't need the previous weeks data anymore.

Each day needs to be stored on separate media and it's put in a 
fireproof safe.

So what suggestions do you all have on both media and software (PC 
unfortunately).

Thanks everyone.

David Crandon