Sorry, NTBACKUP even when working does not write to CDR or DVDR and didn't work on a 10GB AVI file we had. It's rubbish and you can do better with free software such as CDBURNERXP.
I no longer help people into this data deathtrap.
i bought a laptop that came with xp home sp2 pre-installed by the manufacture. i need to use ntbackup but from microsofts website it is supposedly included in the value pack folder in the installation cd but my xp came pre-installed. i have talked to microsoft who refered me to dell and vice verser and i am tired of this. anyone,.... someone,... HELP!