Hi,
my opinion:
let the romname as short as possible (like the mame-roms, for example "dkong.zip")
and in the the Database the complete name (or name you like), look into cutout from Model2-Database:
<game name="bel" cloneof="">
<description>Behind... Enemy Lines</description>
<genre>Shooter</genre>
<players></players>
</game>
OK, perhaps a lot of work to do, but i think the resultate is quite good...
Digital