Surprising this will hang Win 7, if the DVD is too full. You can't kill TCC. The task manager just restarts TCC. I had to reboot. The rest of Win 7 is alive, you just can't get rid of TCC. loadmedia V: rem format with UDF 2.5 format V: /FS:UDF /R:2.50 /V:%date if errorlevel 1 pause format failed rem turn off treating Descript.ion files as special setdos /D0 copy /s G:\bks\*.* V:\bks\ if errorlevel 1 pause fail to copy bks copy /s G:\dl\*.* V:\dl\ if errorlevel 1 pause fail to copy dl This is probably not your problem, but I thought you might like to be aware of it. I have often thought copy should be clever and fail fast if there is not sufficient room.