I think "oldtimer's" disease must be setting in.
As I'm contemplating selling my DVD5 now that I've got an Oppo 83SE, I have been assembling the currently unused bits belonging to the DVD5.

I've found 2 cables marked DVD-93. They are 5pin DIN. Are these the cables I used when I was trying out DVD-Audio from the DVD5 into my AV2?

When I found the first of these I thought it must be a spare lead to connect my Naim 282 into the AV2 (via the AV input on the 282), but I already use one of these leads - so why would I have 2 spares?