probleme initialisation protection antipiratage du DVD

[IOo°]

i've got a Pioneer 115, with the latest firmware region free, and when i try to launch a DVD, with any player (power dvd, windvd or ATI dvd), the player can't find the key for decoding, or, can't initalise the protection ...

What can i doo ???

Buy a new dvd player *

*i hope no