The risk isn't a technical one
Backing up computer data is easier now than it has been in the past. For $ 90, you can buy a 2TB USB hard drive on newegg.com. Buy two and you can keep an onsite backup and an offsite backup. My music collection takes about 700 GB at present. No sweat.
I still have all my important digital files that I first stored on 5 1/4" or 3 1/2" floppy disks. Moving the files to newer digital storage media was trivial. Of course, I didn't wait until I didn't have access to working floppy drive of the right specifications.
The problem that you describe isn't a technical one; it is human inattention.
You used the phrase "forever easily erasible." Human error in erasing data or hardware/software malfunction is a different problem from that of media failure or media obsolescence. To guard against unwanted changes to the data, you need to archive files so that you can got back to previous versions if an unwanted change occurs and you find out about it later.
In the real world, many organizations that have old paper records are busy transferring them to digital form. The benefit is much greater accessibility, reduced need for storage and protection against physical deterioration.
Bill
A point that people should bear in mind is that it is "dangerous" to hold data, the music on a server, in a form that is forever easily erasible. There are nightmares occurring now in the scientific world where precious scientific data is stored on read/write media which can no longer be easily read for various reasons, look at the mini panic now about significant master tapes in the audio world.
Backing up computer data is easier now than it has been in the past. For $ 90, you can buy a 2TB USB hard drive on newegg.com. Buy two and you can keep an onsite backup and an offsite backup. My music collection takes about 700 GB at present. No sweat.
I still have all my important digital files that I first stored on 5 1/4" or 3 1/2" floppy disks. Moving the files to newer digital storage media was trivial. Of course, I didn't wait until I didn't have access to working floppy drive of the right specifications.
The problem that you describe isn't a technical one; it is human inattention.
You used the phrase "forever easily erasible." Human error in erasing data or hardware/software malfunction is a different problem from that of media failure or media obsolescence. To guard against unwanted changes to the data, you need to archive files so that you can got back to previous versions if an unwanted change occurs and you find out about it later.
This is one reason that paper is a big winner, vinyl is also excellent, and CDs may in turn prove to be life savers down the track ...
In the real world, many organizations that have old paper records are busy transferring them to digital form. The benefit is much greater accessibility, reduced need for storage and protection against physical deterioration.
Bill