Hi, New(old) boy here. I have a Sony GXD500 and a VX 420 and neither will record on TDK DVD+R. The 500 will play copies of dvd+rw's burned by pc onto TDK. The 420 will 50% of the time. My £15 Alba player plays just about anything! TDK advise a firmware update but the Sony site is totally impenetrable and keeps locking me out with *&^%like" you have not entered a product value". Sonycentre Northampton were anoymous, brief and totally useless. They said the updates come off air from Freeview. The VX420 does not have a Freeview tuner! My pc knowledge is limited but SOFTWARE updates are broadcast (EPG and such) but FIRMWARE?? Any help you can render I shall be grateful for. Dave.