Error EC8F17B7 and Error EBAB03F1???

I just got the following error for the first time. I use Ghost 14 on an WinXP Pro system with Intel Quad Core.

Error EC8F17B7: Cannot create recovery points for job: Drive Backup of Main Drive (C:\) (2). Error E7D1001E: Unable to read from file. Error EBAB03F1: The request could not be performed because of an I/O device error.

Details: 0xE7D1001E
Source: Norton Ghost

 

As a result the scheduled image backup did not run.

Any ideas?