Good luck with that quest, strummy : You can download the manual in pdf format at the Boss website (if you look hard enuff )...if you can't find it, I can send it to you.

Why? There's a 2-page Patch Sheet you could photocopy, or if you have the pdf, print at will, that you can jot your personally-created preset patch settings on. Truly handy, since they're only ID'd by numbers, not by name, on the ME-50.

The manual wasn't downloadable when I got mine, so I re-created the Patch Sheet in XL as a one page thing. I've attached it here: