Good for a while
Have had the Samsung P421 for about a year an a half. 10 months into ownership it began pausing occasionally and randomly in the middle of a DVD, then either skipping or stopping entirely with the "Disc will not play message." Initially I attributed this to to a disc that was dirty or damaged, but when cleaning a disc didn't help and it did it as well with clean DVDs that played satisfactorily on other players, I realized the player was at fault. As time has gone on it's gotten worse, and now it displays this problem on at least 70% of the DVDs played and refuses to play through about 15% of the DVDs. Much too unreliable or short-lived to recommend. Too bad, because a number of its features are excellent.