CD-MP3 Player stops after playing a specified...

Check your lens on the laser....is it dirty? IF so it needs to be cleaned....STOP !!!......the laser lens is on the focusing mechanism, which is EXTREMELY delicate.

TO clean the lens, get a Q-Tip and some distilled water ( the lenses are plastic, so do not EVER use alcohol, cleaners, window cleaners,etc... on the lens. These will make the lens cloudy and you will then have to replace the mechanism).

Moisten the Q-tip ( Not to the point where it is dripping, but just moist ), and CAREFULLY clean all dust and dirt off the lens. Wait 10 minutes untill the lens has dried completely and try it then.

Hopefully this solved your problem. Dirt is the enemy of all Optically read formats.

Good luck... Rob