Sluggish response, read errors and crashes

Hello, I have purchased the player in combination with a LG 47LW4500. Was a great offer. The players there was practically free.
Thank God, because otherwise I would have been annoyed to have spent money on it.

In brief only the negative points:
-NoGo: The CD / DVD / BD discs rotate even during the cast!
-regular read errors associated with loud mechanical noises. (I sometimes fear that the CD / DVD / BD slips and sanding marks gets)
-Abstürze, Trailer, spinning mills
-SmartTV Frustrating: eeeelend sluggish response. It seems overloaded, the whole system. (Power set no fun radio stations to seek YouTube video.)