Why don't some games in mame work?

Hey Guys & Gals,

I have a huge collection of mame roms and most work, but some of
the more recent games, like daytona and fighting vipers, don't even show up
on my list of games within mame. I've refreshed my game list and saved the
roms in folders that are listing in mame. I'm using mame V .107 with emu
loader. Any reason why these games mau not be showing up? Thanks for any
help & tips.

-G

"Me" <me RemoveThis @me.com> wrote in message
news:5bqdnaCYc_ldYmTZnZ2dnUVZ_vmdnZ2d@giganews.com...
> Hey Guys & Gals,
>
> I have a huge collection of mame roms and most work, but some of
> the more recent games, like daytona and fighting vipers, don't even show
up
> on my list of games within mame. I've refreshed my game list and saved
the
> roms in folders that are listing in mame. I'm using mame V .107 with emu
> loader. Any reason why these games mau not be showing up? Thanks for any
> help & tips.


Simply put, the code needed to run them isn't there so that's why they
aren't showing up in your game list.

Despite the fact that you have the roms, it doesn't necessarily mean the
game is emulated.

Hell - I've never even heard of Fighting Vipers before.

But - the general rule before a game is considered for emulation is 3 years
from the date of last manufacture/sale,
so if Fighting Vipers is newer than 2003, then that in itself is the chief
reason it's not in MAME.