I'm in the process of backing up my laptop using TI 2009 bootable media and the writing process has finished with 1 DL DVD full and part of a second. I had asked to Validate the backup archive but when it started that, an error message popped up: "Error opening the file. Please insert the last media of the backup archive and click Retry to continue. Otherwise click Cancel to stop the operation." So I removed the second disk and put the first in, and I get the same error with either disk. What is wrong? Thanks.