This is frustrating. I useing trial version of T19 b. 2323. I do most of your inputs for good backup but my backup fails every time on this error. 1. I've made backup and TI give me message operation succsesfull. I go to Check archive and the error pops up 2. I go and try to make backup with verifying checked option immediat3ely after backup - failed with the same error. 3. Boot PC with Rescue media made backup ok, check with Check archive - ok, go to Windows on Check and here we are again the same error. MEade chkdsk /r on system disk (which I want to backup), using XP Pro, destination is another physical IDE drive. I'm testing this product which I will buy if things will work. I was very unsetisfied with Norton Ghost 9. Thanks for your answers.