Is there a way I can turn off user prohibitions on the Sony DVP-NS715P DVD Player? Meaning I want to skip past forced trailers, FBI warning, change the audio, etc. Its really annoying that everytime I want to skip past a forced trailer I get "prohibited by disc". There must be a hack for this. I remember reading something a while back about removing it via certain codes. Anyone have any luck with getting rid of the user prohibitions on this model?