As far as preserving in digital format goes a friend said why not store wave and mp3 files on a RAID configured digital setup. There are several choices. One of them is to have two hard drives mirroring each other, so whatever is stored on one gets duped on the other. Important point, if you 'mess-up' an existing recording, you will now dupe the mess-up as well. Another RAID configuration utilizes four hard drives with enough internal processing that any one of them can fail and be replaced with no loss of data. You give up 1/4th of your memory in order to do this, so f'r'instance, a set of four hard drives each of 160 GB size will store 480 GB worth of data. That's still a lot of storage at not too much expense.