theatremouse, I've only tried .bin files, but I have also only tried FFVII and Xenogears and both seem to work after I apply the "true" value on SW-render in preferences. I also used a freeware program, ImgBurn, that was recommended on another forum for psx4droid. It didn't work well with that but I used the same file using this process and it worked.
I still got more games to try that I own, but most are already on the compatibility list. I haven't attempted to try another other format other than .bin since that is already working.
Not sure if that answered much but good luck to ya. Also thanks to everyone, especially Yifan Lu, who has posted since I was able to get it working with all those "notes".