DVD-videos won't play, games do

If your PS2 is chipped for playing PS2 fake games then try the following steps:
1)Insert the DVD movie in your PS2 and hold the power button of PS2 until it light goes red.
2)Now again hold the power button until the light turns in green. and after that your DVD movie should work.
________________________________________________
If above solution does not works replace the lens with a new one.