I've been running Nero no problem for quite some time but yesterday I changed the burn speed so that it was as low as possible to burn off a couple of linux disc images and since then it doesn't seem to be burning properly, images that should take eight or nine minutes to burn seem to be jumping from 4 or five minutes estimated time remaining to less than a minute for no reason, the only thing thats changed is now as nero initiates burning it prompts me to say "JustSpeed is turned off and the recording quality can't be guaranteed.

Any help would be greatly appreciated chaps