I have purchased recently this PHILIPS 1640P and, through this forum (tnx a lot!), I have updated firmware to the version P2.4.... but still remain some serious problems.
In the next update (P2.6?) should correct the difficult recognition of the supports DVD-R 4x 8x....!!!!! The drive doesn't recognize almost brand of dvd-r (Taiyo Yuden dvd-r 4x.....)
I think that this defect has remained from only to correct, for the rest it seems me a good drive, also in reading, very fast and precise.
I would be very thankful if someone told me how to resolve this defect, waiting for the new firmware.
Thanks to everybody