Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Brand name that did not live up

I bought this prtable DVD player and had to exchange it shortly afterwards because I thought I got a defective player. This turned out not to be the case. The second player also had the same problems.*****This player frequently will not play DVDs. Usually I have to start the player 5+ times before it will read the disc. Even if it reads the disc it may either skip the first scenes or freeze midway through the movie. Forget about trying to access the menu. Any options other than play movie, tends to freeze the screen. Friends and family have other portable players from other brands and do not have this problem.I find this Toshiba player virtually unusable.