i stumbeld about a cube (not mine btw )

who had an interesting problem its dvd player was set to region 1 and sertting it to region 2 was easy enough except it needed to reboot

it reboots goes to open firmware and then you manually have to typ ein mac-boot where it greets you with a log in screen ..lovley

nobody knows the pass word and the open firmware prompt makes it a tad difficult to boot of a cd turning the cube in to a pretty presse paper

i have thrown pretty much every command at openfirmware to either get it to stop automatically booting and to get it to boot off a cd

to no avail

the hell is this ?

and short of ripping out the hd and installing os x on a differnt mac what can i do to get rid of open firmware booting ?