Multi Boot GB ROM Pack For Gamecube USA

How am I supposed to make a multiboot from this? I'm not going to run all of them individually as it will confuse CFG Loader, but GCM Utility doesn't allow me to add an image or name to them so I get a list of identical entries.

Files in this pack: GB-AddamsFamily.gcm GB-Balloonkid.gcm GB-BartVSTheJuggernauts.gcm GB-Batmantheanimatedseries.gcm GB-Beethoven's2nd.gcm GB-Boxxle.gcm GB-Boxxle2.gcm GB-BrainBender.gcm GB-DR.Mario.gcm GB-FinalFantasyLegend.gcm GB-Garfieldlabyrinth.gcm GB-Hyperloderunner.gcm GB-Indianajonesandthelastcrusade.gcm GB-Kidicarusofmythsandmonsters.gcm GB-mcdonaldland.gcm GB-MickeyMousemagicwand.gcm GB-MS.Pac-Man.gcm GB-NinjaBoy.gcm GB-NinjaTaro.gcm GB-OutOfGas.gcm GB-Pac-man.gcm GB-Paperboy.gcm GB-RolansCurse.gcm GB-RolansCurse2.gcm GB-SkateOrDie-Bad'NRad.gcm GB-Skateordietourdethrash.gcm GB-Snoopymagicshow.gcm GB-Spider-ManandtheX-meninarcade'srevenge.gcm GB-StarSaver.gcm GB-StarWars.gcm GB-Starwarstheempirestrikesback.gcm GB-SuperMarioLand.gcm GB-Teenagemutantninjaturtlesfallofthefootclan.gcm GB-TeenagemutantninjaturtlesIIIradicalrescue.gcm GB-Tetris.gcm GB-Tetris2.gcm GB-TheadventuresofPinocchio.gcm GB-TheamazingSpider-man.gcm GB-Theamazingspider-man2.gcm GB-TheamazingSpider-Man3invasionofthespider-slayers.gcm GB-TheBluesbrothers.gcm GB-TheBluesbrothersjukeboxadventure.gcm GB-Theincrediblecrashdummies.gcm GB-Therealghostbusters.gcm GB-WaveRace.gcm GB-Yogibearinyogibear'sgoldrush.gcm GB-Yoshi'scookie.gcm GB-Yoshi.gcm gmj-gbpck.nfo *Note: a gcm file is just a renamed iso file

guys I do not can use an app called dmtoolbox making iso turn a gamecube game I use the Wii by nintendont thank you guys help me but has a problem some are not in iso format , I installed gba pack yesterday and not was in format iso let's get right to the point anyone know any iso algun game n64 of gamecube