xbmc emustation not recognize .zip roms?

[willis]

I'm having an issue with xbmc emustation regarding reading roms. I initially had a rom set in the .zip format placed in the proper rom folder. These roms worked fine and I didn't have any issue. Now, I had found a more complete rom set and decided to place them in. The only difference was the new rom set were all in the .7z format. When I tried to play those, it looked like it was loading them until a little message came up stating they weren't a recognized file format and loaded the menu again.

So the real issue came up now when I finally tracked down the complete rom set I needed (which was in .zip format like before) and placed them back in. Now emustation still won't play the games and has that error message still.

The .zip files are the prefered file type correct? Is there some sort of settings or file that needs to be changed or taken out for them to work again?