Audio book swap?

smiorgan and I have just returned from a week in Cumbria (of which perhaps more later), and for the long drive up, the many drives around, and the long drive back down again, we purchased some audio books on CD. We're unlikely to relisten to them, and will want more for the next time, so (this might be a long shot) does anyone else buy audio books and would be interested in some swapping?

The ones we have are:

• Fly By Night by Frances Hardinge
• Lord Edgeware Dies by Agatha Christie
• Uniform Justice by Donna Leon

This selection is much more random than it looks, because the choice in motorway services is very limited, and we were lucky. We're not terribly fussy about what we swap for, although detective fiction is particularly good for long car journeys for some reason.

I'm happy to swap by post (in the UK), so don't feel excluded if you don't live in Oxford ;-)