Well another shock..having just built a new system with XP Pro I now find that the two full backups of data that I have are either not ATI or corrupt as the message tells me! I have 30 DVD's of data, this data does not reside on the OS HD, it is on another HD. I just wanted to verify the backups and this is what I got as a message! These backups were done in Jan '07 on my old system with W2K Pro and the same ATI Home, ver. 10. I am just thankful that I did not loose the data HD, I would be up the creek without a paddle. I looked at the DVD's and they all have a "tib" file. So far this program is absolutely useless. Anyone got any ideas? AM I doing something wrong?