Will Panasonic Sa-pt160 Dvd Player Play Region 0 Dvds Does Anyone Know A Code To Convert My Panasonic DVD Player To Multi-region?

Does anyone know a code to convert my Panasonic DVD player to multi-region? - will panasonic sa-pt160 dvd player play region 0 dvds

I recently purchased a Panasonic SA-PT160 DVD and thought it was multi-region, but unfortunately it is not. Does anyone know a code / hack to change it. I have a few Region 1 DVD's and do not really want to go the replacement cost.