I have reset DMA, however I am not sure this is relevant because I thought DMA was an IDE setting yet my drive is SATA?
My read speed was set to “recommended”
The DVD RW+ i used was a TDK
The DVD R which have failed are Tesco and the other one is an unbranded cheapy!!
I have some Verbatim DVD+R which are lightscribe, however I am reluctant to try one as they cost a packet!!!
Thanks for prompt reply