Hi,
This link may be of some use:
Goodmans User Guide
http://www.goodmans.co.uk/productdetails.aspx?pid=GDVD301RP&language=en-GB&vw=ug
I have just bought a GDVD 300R. If you cannot download the manual you need from the link above and the manual for my machine is similar to the one you need, I could probably scan a few pages and e-mail them to you.
J Hynes
November 2007