@jeffahughes Please do not post a support request without first reading and following the advice in https://retropie.org.uk/forum/topic/3/read-this-first

@mitu my fault with the 3rd party images. I appreciate the help though. I’ll check it out and get back to you with my findings. Thanks again.

I don’t have any experience with this particular setup. But do you need to be root user to make these changes? Being logged in as root has changed permissions in the past for me that broke my setup pretty bad.

Maybe you can run the utilities with sudo as user Pi and see if that changes the outcome. I may be way off base. I’d love to see the results of this on a CRT when finished. Good luck

So I got it solved: it appears that the rights were different on the .rc file for AdvMame 3.x (it was owned by root and not pi) so I fixed that and copied over the input map entries from one of the earlier versions' .rc file and now everything appears to be working. :)