I'm trying to backup some dir's on my PC to an external USB2 HDD. The total size is about 150 Gb. I've configured the job to automatically size the file (not to split it up). When I run the job, I have two problems: 1. I can see the backup files being split into 4 Gb sizes. 2. The backup ultimately doesn't progress and stays in limbo until I end-task it (varies around the 5% to 20% mark). I have another job that backs up ~50 Gb into one backup file and that job works fine. Any ideas for this wacky behavior? I'm running Win XP Pro, SP2, NTFS formatted drives.