Mmh... I think I'm doing something wrong...
I download the "boogerman" rom, and put it in a folder called "prova". Then i installed DGEN and write on X Terminal:

dgen boogerman.smd

But the answer was "Couldn't load ROM file boogerman.smd!"

So i try with

dgen boogerman
dgen prova/boogerman.smd
dgen prova/boogerman

But... Nothing. Always the same answer...!
So i thinked the rom wasn't good, and download another rom. This time the rom was a .bin file (i don't know why) and i try with it but... Always nothing.

What can u say me?
I wait for your wisdom answers!!

Ps
Please, forgive my bad english, i'm only a stupid italian guy.