I bought a Samsung P171 DVD Player and I have a problem with it : it enters alone in standby . I put in a Audio CD , it plays 1-2 minutes and then enter alone in standby ... same thing with a DVD-R with a movie on it ... when i connect it to a source of electricity the DVD player enter in standby ... I can't see a movie or listen to music because after 1-2 minutes enters alone in standby ... i don't know what to do

Sorry for my bad english ...