DraStic

I've had drastic for about a year. I recently put my phone back to original settings and downloaded drastic again. I have a folder on my pc that has all my roms on it. I put this onto my phone and while I haven't tried every game from there they all seem to work. Custom robo arena was another game I had played on my old install of drastic but for some reason it wasn't in this folder but no matter so I went to download it. I have downloaded it from like 7 different sites and every time it gives me "the file you tried to open is not a valid rom". In this process one of them actually showed the game icon but when I tried to load it, it just crashed to home screen. I have played this game on drastic in the past so after 6+ hours of trying this I ask for any help anyone can provide.

I think I solved the problem. I was using a brand new sd card and I thought that might be it so I put the game on the phones memory and it worked fine. So maybe I need to do something with the sd card like format? it or something. But anyway it looks like its working now. Thanks drastic.