If there is a scratch in the DVD, or maybe dust in the DVD player. try taking it out and wiping the DVD with a dry tissue,don't wet it, or you can blow into the place where you put in the DVD. Always works for me :)
This happens when the laser lens ( which reads the disc) needs cleaning as the laser lens picks up dust from the disc. This happens in car cd players due to dust also. There is a laser lens cleaner...
The DVD Player works a bit like the old record player. The principles include Laser Reads the Disc, Motor Spins the Disc and Device Measures Tracks.The laser light is shone onto the disc and as it...
Only of the DVD drive is very dirty or the drive is damaged some how. It can also scratch if you drop it and the eye can move out of place and scratch it