Hi Lightning UK
Sorry for the delay. I attach a screenshot showing the message I get. As a matter of interest this was using a supposedly 800MB, 90 min CDR. I usually use standard 700MB, 80 min CDRs but get the same message. Magix burnt to disc without any problem.
I have to admit, I have never clicked OK to "continue anyway" as I already have enough coasters!! (Not attributable to IMG Burn).
Screenshot IMG Burn.doc