Here is a guide that explains it well: http://www.digitaltrends.com/home-theater/how-to-convert-vhs-to-dvd/
This is great, thanks. It would appear I need an 'Analog to Digital Converter', although when I did a search via Amazon (where I buy most of my products, and generally seem to have honest reviews), the reviews were relatively bad from what I saw. Do you have any suggestions on any specific one?