wont burn 4.7gb RW Sony DVD Vers 1.1
on imac 27" running 10.7.4 on 4year old sony DVD 4.7gb vers 1.1 (bought before the authors right taxe was implemented) refuses to burn. Gives the message it is incapable to calibrate the power of the laser. Is this a technical method to veryfy the DVD is compliant with the tax?
regards michel
iPhone 4, iOS 4.3.3