Did more messing around, things like changing filenames to .zip, adding in a bunch more roms in various upper/lower cases. After changing the names of the all uppercase roms to GAMENAME.zip, I had to go in through media sync and tell each and every one it was a LMCE game. Newly added rom zip files seem to have been set automatically, but I haven't gone back to see if each and every one was done. At this point, some games show up with a picture of the game, some do not. Some games play, but most just quietly exit all the way out. Every single game shows up with the name "No Matching Rom". I also need a controller or something to actually play the games. You can actually start playing a game via remote control, but it's not really playable that way.
I may setup mame on my desktop and sort through the games there, only putting the known good ones (working and worth playing) on LMCE. Short of deleting the games that don't work, manually adding pictures, and manually changing the name of every single game I'm at a loss as to how to make it look nice as in the screenshots/demo vids. I suspect my setup is not quite right. Any ideas? I'd really like to get it like the demo vids, but I don't want to spend hours manually fixing stuff up if I don't have to.