Possible to just "copy" Active Directory database and files for a backup?

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http://serverfault.com – I know it's possible to use system state, but I do not want to do a full system backup... I want to backup AD and that's it. Would stopping all AD services, then backing up all NTDS files be sufficient in a catastrophic failure? Would I be able to just copy/paste in my "backup" copies of the NTDS files? (HowTos)