Big probl;em with dvd decrytpor

What would casue my read rate to drope really fast to a 0.0?

IT has been doing it lately with every dvd i am trying to use.

I tried cleaning the dvd and the dvd’s have no major scratches in them really.

I updated my firmware on it and still not good!

Is there a setting in my computer that needs to be changed or what?

Please help!

This is drving me insane!

Thanks

Dan