I just updated the firmware in my s300 blu-ray player to version 3.70 and grabbed an old BD-RE disc that i had burned in a Sony blu ray drive (from Premiere). It used to be that the player would immediately flag it as a non-supported media. Now, it plays the sounds and advances the recorder index (as if it's tracking perfectly) but does not display picture. Seems really close to reading/displaying user created BD-R/RE. Anyone have insight as to what's going on?