I just wish it wasn't such a PITA to get MESS to load a PC-Engine CD-ROM game through QMC2. I get the whole faithful to the original hardware behavior philosophy, but the bottom line is no matter how many hoops you make a user go through to load a game, you're still not physically inserting a real system card/CD-ROM into a real console. Why can't there be a global configuration option in QMC2 that lets the user simply tell MESS where to look for the system card rom and which one to use. Better yet, let MESS detect/find the system card in the ROM folder when the user attempts to fire up a CD-ROM? Same with other systems like Saturn and RAM carts.
Sorry if this comes off like a rant. Consider this post an immature relapse of my juvenile MAME .58 days