Thanks for the replies guys
I can't work out which model I have it has no markings on it
It has a 250gb drive and no dvd burner.

I have another mac so I may run boot camp on that I don't have any software thou only a disk telling me how to use the software. Dose anyone know if I can download the software for my dvr

I'm asking really sh*t questions I no but I really need the help .

I belong to a car forum and there is always a load newbies asking questions
that members just can't be arsed to answer
so thanks for your help.

cheers
SD