Hi Sven - well it’s now 2022 and 6 years have passed since your message asking about an RD800 patch script file. I’ve just resurrected mine and I have to say it’s better than Roland’s in that theirs has no bank naming and the patches are out of order.
Anyway - no doubt you’ve moved on but if you do want a copy, I’d be very happy to send it to you.
Cheers and apologies for not seeing your request all that time ago,
David