|"It came up every time I tried to load XP pre DBAN, as well"|
There's a little tidbit of info that should have been stated in the original post. DBAN has nothing to do with your problem.
"I dont know what sata is"
The "old" interface bewteen the HDD & motherboard was called IDE or PATA (Parallel Advanced Technology Attachment). The new interface is called SATA (Serial Advanced Technology Attachment). XP was released before SATA went mainstream, therefore it doesn't support SATA HDDs "out of the box". You can NOT install XP to a SATA drive without 1st loading the SATA drivers by pressing F6, or by changing the SATA controller setting in the BIOS to "IDE compatibility" or "legacy mode", or by creating an entirely new XP disc with the SATA drivers slipstreamed into it.
You didn't bother to list your system specs, but if it's only a few years old & originally shipped with Vista, it's very likely you have a SATA HDD. That means that XP will NOT install unless you use one of the methods outlined in the link I posted in my other response.
Before you made this decision to go with XP, did you check to see if XP drivers are available for the rest of your hardware? You'll need them for the motherboard chipset, video, sound, network, wireless, etc. These drivers probably won't be on the XP disc either. Remember that XP is 10 yrs old, so obviously any drivers included on the disk are at least 10 yrs old as well.