Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Don't buy - it will not last more than 90 days

For the first three months, the portable DVD player worked good. On the fourth month in the car, while hanging in it's headrest bag, the player would stop and a white screen apprears and movie doesn't re-start unless the power was shut off/turned on. It would re-play, but if a slight bump from road happens, it stops. Then at home, if the screen was slightly re-positioned, it would stop. When I called Mustek, the customer service was lousy, all he could say was these only had a 90 day warranty, and could not offer a repair suggestion. Luckily I opted for a extended warranty when I bought it from Office Depot, and the customer service person said this was a common problem with this system (ribbon defect from monitor to case), and he would send me a store credit card to buy something else, as he didn't know of a repair solution. So, now I will search again for a DVD player that has better quality.