This has just landed from Japan. So, all things considered, it's a UFO - an Unplayable Foreign Object!
Saw it on ebay and despite not having a Laser Disc player, I couldn't resist. I have a copy of it on DVD and the picture and sound are incredible; hi-fi stereo etc...
Oh well, at least I can look at it and then stick it with all my LPs, which don't get played either!