My DVD-RW does not read a disc neither write a

Goodmorning!

Your drive problem is that the lens is not reading the cd beacuse lens is not brought up to its possition to read the cd ie in the mechanism there is a belt that can be worn out( not srong enough to raise up the lens compertment pls check the tightnes of the belt to the pulleys or the lens its self is damaged if so needs replacement
You can even check the motors if there ok by removing the belt applying some small volts to see if it is spining alright .
Most of the time is the lens compertment Belt that get weaken after a period time

Good luck

it's busted replace a new one