Thanks for the links and the help.
Img burn installed, great bit of freeware.
At the moment I must say price and in store avaliabilty has dictated my media choice, Kodak branded media seems to cause most grief and has a higher failure rate, it was under Â£5 for 50 in Tesco (incidently it seems to be identical to their own brand media)
Now using Sony (Green label spindle 50DCQ80SP5A) and that seem less prone to skipping.
I've seen a good deal on some older Verbatim media, someone on another forum suggested this may be the same as Taiyo Yuden which I was aware of being top stuff as far back as when they still manufactured compact cassette.