So chances are I'll probably not be able to get the audio working without some converting. Bummer. I wonder if anybody can confirm if these games are ALL ape or maybe just a few of them. I don't want to share the location where I can get it but it's pretty well known. I just don't want to blow +100gb getting the collection if it's not going to work.
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