>Yes, I´ve tried that and, only my notebook can´t read it. It seems the problem is on the read sensor, or in the firmware of the sensor, or something like that.

This isn't much help, but I do remember a notice from MS in some MSDN Library shipment maybe 1.5 - 2 years ago that noted that some notebook DVD/CD 'combo' drives do have problems reading some DVDs. Maybe you have one of them.