Holly - Thanks for the info. I'm going to try out more headphones (I have a few). Its a shame if I can't use the Sony's for the BC, they were an expensive Christmas present from a friend and the sound quality is excellent. I'd also like to thank everyone who has helped point me in the right direction for tracking down a mono adaptor. I was struggling with the search facilities on Maplin, RS, and Radio Shack (in fact I still can't find them on the last two. But have found it at Maplin). Bruce. ----- Original Message ----- From: "Holly Anderson" <holly@xxxxxxxxxxxxxxxxxxx> To: <bookcourier@xxxxxxxxxxxxx> Sent: Wednesday, March 30, 2005 5:21 PM Subject: [bookcourier] Re: mono The reason that your headphones cut out when you rotate the plug has nothing to do with size. More than likely your phones have a short in them. Mine do this after a while, it happens to headphones, especially the cheaper ones with the thin wires. It all depends on how you store them really. Hth Holly