my player has similar problem error messags comes up with (unknown disc please check disc again) and rejects (opens the dic tray)
the player started playing up just after 15 months trouble is if i put in a dvd cleaner disc it does the same thing
and thease are the discs L.G. recomend
ive contacted them and found there aftersales not very helpfull
so the only solution was i now use tdk blue colour discs and found thease discs are accepted better
but it appears i still have to remove the players cover and clean the lazers head (with dvd unplugged from mains) with a q tip and acohol based liquid every six months
i think dust is the problem it only needs a spec invisible
to the eye
mgs comments, October 2008