Thanks guys,

That helps a lot, my friends car is 2007 so that will make it a Professional version disk. Although my Mk IV is aftermarket (and therefore I don't know what model it came out of, the chances are that it will still be a High system).

Is there a way of telling whether the DVD reader is a High or Professional if it's not actually installed in a car?

Final question, and thanks for your assistance so far is, how can I tell what version my mapping is? When I purchased my Mk 4 it came with a backup DVD in it but I don't know what year or version the mapping software is, is there a quick easy file that will tell me what year/version my mapping software is?

Cheers