And me....
You don't get all the glory 
I shouldn't even respond, but for some reason that comment bugs me.
1) I'm not taking any glory, I was simply responding such that he knew that I saw his thanks, a basic "You are welcome" post. Should I have used "we" instead of "I"? I don't think so, due to...
2) He was directly quoting me in his last post when he said thanks. Therefore justifying the use of "I". Plus why would I speak for you?
3) Your advice actually makes no difference at all. You don't have to have a rom extension for it to work with mame, and it will still generate lists and launch games. Its more correct sure, and will help him set up non-mame emulators, but to his specific question, you didn't answer anything. So you are fishing for thanks for advice that didn't help, and in doing so trying to make me look like a greedy glory hog?
Dude asks question, dude gets help, dude says thanks, dude gets a welcome. I don't see what the problem is.