Not a video, and actual rom. Since pretty much all arcade games had some sort of attract demo that would run on them when no one was playing, I'd like to have MaLa load up a random game instead of a screensaver, then 5 minutes later pick a different random game, etc., etc..
I'll check out that other option you posted about, thanks!
EDIT - It looks like that will do what I'm looking for, I just wish that function was native to MaLa. I'll submit it as a suggestion for a future build... Thanks for the link!
UPDATE: I got that Mame Screensaver installed and it works very well. It can start random games after a set time, and then switch games after a set time. You can also use the option of inserting a coin and playing the current game, and set it so that a particular key has to be pressed to exit out of the screensaver.
All in all it is a great way to tour the roms you have, especially if you're like me and a huge number of them and don't know what 3/4 of them are. Thanks again, Green Giant