It sounds like you have copies of your media drive, which you are using as your backups. That is fine, particularly with the re-assignment of drive letters described above.
But nothing is better than a real backup solution that supports incremental and differential as well as full backups, and can restore to a new hard drive as if it was the original drive, whether it was a System (boot) or data drive, and just works.
I could add Acronis True Image and Norton 360 backup to your list of failed backups solutions, that can't be relied upon when you really need them; when you have to recover from a disaster. After Norton failed me, and Norton support couldn't help me, I searched for a good backup solution, tested a bunch, and found only one that appears to be a good backup solution that does the job properly, like traditional backups solutions.
That is EaseUS Todo Backup, Workstation version. See
http://www.easeus.com/backup-software/personal.htmlI haven't had to do a recovery "in anger" after a drive failed with it yet, but I did do real world system and data drive restores, on live hardware not a test system, and they worked well. EaseUS has been very reliable, and the company is fairly responsive with support requests. Certainly they have shown an interest and fixed stuff when I have had minor niggles with the software.
Anyway, I have no association with EaseUS except as a customer, but I can highly recommend their Todo Backup software. Not perfect, but good, and reliable. For my workstation PC, that is what I prefer to use. My media collection is way to big to backup at the moment, so I just monitor the drives with HD Sentinel, but when I get around to having a NAS or enough space, I would use EaseUS for media backup as well, since the Incremental backups make recovery of files at a point in time easy.
If you ever consider getting a real backup solution, instead of just copies of the hard disk, have a look at it.