I have a Philips DVDR70 and some of my DVD+R disks doesn’t play after having been recorded, getting the message “Disk contains unknown data” on display. I have read that some older firmware version had a recovery function that consists in pressing the “5” key on the remote control while the tray is open, but such function doesn’t seem to work in my unit.
My Philips DVDR70 displays this firmware version information:
DI E2/24277 AN 130322 SV 69
BE 20.3.24 DV not present FP 13
P1_7_b 20040610_1700 dev alead 5.25
Could you please help me about how to recover these disks? Maybe must I go back to an older firmware version? If so, where could I find it and how should it be installed?
Thank you very much in advance.