Panasonic Matshita blu-ray drive firmware problem

vbimport

#1

I own a Sony VAIO (VGN-AR21S running XP) laptop with the Matshita UJ-210S blu-ray drive. I recently downloaded a 1.06 firmware upgrade from Sony. Since the upgrade however it refuses to read Pressed Data DVDs and more importantly Blu Ray. It does however read CDs and DVDR.

I am at a complete loss so far with Sony, and found only one mention elsewhere of a similar problem (but with no detailed followup). Does anyone know how to remedy this problem, perhaps by downgrading the firmware back to 1.05.

Would appreciate any help on this matter.

Regards

John