Mark,
Thanks very much for this, it has certainly led me in the right direction, even though the wave-p site doesn't seem too accessible at the moment.
I will contact them and see if they can provide me with the software.
I eventually found that using the active X player plug-in for IE the files would play but in order to convert them I resorted to using the program snagit to capture the video onscreen, which I then saved in .avi format.
I will see if i can get hold of DVP from wave-p to do it properly.
Again thanks very much for your reply.