Im attempting to get my Nes Roms to work with Hyperspin man what a PITA

..If there is anyone who can explain to me in dumb people terms on how to get my folder of roms to match what the XML is looking for without doing it manually renaming one by one id be forever grateful.
And in my search I see people mentioning make sure your NES roms are NO INTRO whatever that means

. I cant quite figure out what a NO Intro rom is and what the difference is between a intro and no intro.
Im debating on dumping the whole idea of HS and running Maximus if I cant get this going soon.