Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Worst Purchase Ever Made

I'm rather serious when I say this is possibly the worst purchase I ever transacted. Every other dvd player I've come in contact with has far surpassed this ... machine, which has given me three-something years of agony and rage. Its response from the remote control is relatively long, it freezes up on some of my dvd's, screws up on reading the disc if I use fast foward or rewind, and is incredibly slow. When I first bough this, I wasn't expecting anything great, but at the same time, I did not expect for it to be of such low quality. I give Konka the Black Mark when it comes to this product.