ok, ive just bought a ronin p215f and im having problems with playback with my dvd-r/dvd+r's.....occassionally the player will just stop....the screen turns black with the words av appear in the top right hand corner. I have to turn the play on and off again...to be able to play the dvd again. Normally i would think its the media but ive tried 3 different kinds.....maybe theres a setting in the player or something, im not sure.....any ideas folks?

and yeah the player is compitable with: DVD, CD, MP3, VCD, SVCD, CD-R, CD-RW, DVD-R, DVD-RW & JPEG onscreen viewer