System Fails To Boot Setup DVD - STOP ERROR 0x000000A5

run windows 7 on an old laptop, an hp pavilion zt1250 (1ghz, 1gb ram, 20gb hdd, dvd/cd, external wlan, xga screen, that sort of old). it isn't like a serious installation, it is more like a "post on Internet to a "windows 7 running on a nine year old laptop" or "wow your friends with your old computer running a newer os than their new one (possibly)"", and because it looks pretty darn cool. anyway, i pop in the install dvd and we get past the gray progress bar and onto "starting windows", until all of the sudden out of nowhere, just a second before the cutesy windows logo animation appears, i am instantly greeted with a blue screen saying nothing more than:

stop: 0x000000a5 (0x0001000b, 0x50434146, 0xffd0ac0, 0x00000000)

it does it on all install discs that i've tried, and it gives me the same error consistently every time. i even tried starting the installer within xp, and that starts okay, but after the first reboot where it boots the partially installed os from the hard drive, it does the same thing before it can continue. everything that is not essential has been unplugged, tried removing ram modules, on battery or plugged in, checked the extremely simple bios settings menu (you can change like three things, none of which pertain to the situation), and most other items that could possibly be covered here. this leads me to the conclusion, that since it my disc is fine and my hardware is fine (did a bios update), that the installation disc must be first modified in some way, perhaps to skip a certain unnecessary check?