All I want is a software backup program that will backup the files I specify on a routine basis. After the initial backup when the next backup cycle comes I want it to look at the files on the on the pc disk and compare them to the same files on the backup disk and copy them to the backup disk if they are different. Also any files that have been deleted on the pc disk would be deleted on the backup disk.
At present I am using a Western Digital My Book and the WD Smartware that came with it. I thought their program did just that but I discovered that any file I ever copied to the backup was still there. Makes the backup disk fill up really fast if a person is getting a lot of video's and then discarding after watching. I'm not the smartest crow in the nest so don't hesitate to correct me if I'm overlooking something. Thanks much.