Instruct: Classify the given Amazon review into positive or negative sentiment.
Query: Be Forewarned ...

1) Plays approx. 75% of new retail DVD's without problems (which include repeated freezing & stuttering). 2) Records & plays back DVD-R & DVD+R discs w/o issue. 3) DVD-RW & particularly DVD+RW discs (Sony discs!) ... well, good luck. 4) Outside of these deal breaker isssues, my unit worked quite nicely. Sony's response ... something along the lines of user error/it must be all in my head. I strongly suspect the recording/playback problems are software encoded copy protect glitches. This unit will certainly be my last Sony product (3rd strike rule).