Our combo tv/dvd will not play a disc after 1hr. Have tried numerous discs with same results.

SOURCE: Device display now says "bad" and TV display says "Incorrect disc"

Sounds like the player has a dvd mech/picup problem, will probably require a repair that is more expensive than a new player, they are as low as $30 and personally I dont even try to repair my own, I just go buy a new one. There may have been some dirt on the disc that is blocking the laser if you want to try a cleaning disc I doubt it would hurt it anymore.

SOURCE: SONY SLV-350P DVD PLAYER/VCR COMBO

I'm afraid you are dealing with a weakened Laser on the unit. The cost vs. benefit ratio of fixing this unit is not worthwhile.

You will find that there are newer versions of this device on the market less expensive than what you paid for the unit you have now.

SOURCE: SAMSUNG SV-DVD440 Combo

how old is the player, it sounds like the lazer has gone down if it reads cds and not dvds

SOURCE: dvd player combo

uncompatable disk?if not try cleaning the lens of the player by using a cd/dvd lens cleaner...the cd thing with the two brushes stuck onto it...with some cleaning fluid

SOURCE: DVD PLAYER Locker

press the stop key on the television and the on/off button on the remote at the same time.