DVD PLAYER

dirty laser, give it a clean with an Isopropynol alcohol (cassette head cleaner) moistened cotton bud, with very gentle, light pressure circular motion. If that fails then I would suggest getting a replacement laser pickup for it. CD cleaner discs may work, they don't do a very good job and can end up scratching the laser. Make sure the unit is unplugged BEFORE removing the case lid to gain access and also be very very careful not to knock the timing out on the tray. you may find it easier to eject the disc tray first, unplug and then remove the lid if it allows with draw open otherwise whilst unplugged push the tray in slowly so that it is not fully engaged, that way you will be able to slide it out again without screwing the timing up when the lid is off.