Page 1 of Yamaha DVDs80 multiregion code?

Hi, can anyone tell me if there is a mutiregion code for a Yamaha DVDs80 HTk?

If not is there a hack, disc, something that basically wont void my warranty (grin)

Thanks in advance
Doomey

email me an answer to seiceps_eht_fo_elame[at]moc.liamtoh