McPhee

Ignore. Found an old Google result suggesting my issue was because RetroArch can't handle ZIPs. My issue was something else; core names were incorrect.

I've got thousands of zipped ROMs on my system, all linked in to Launchbox. I now want to start using RetroArch as well. Is there any quick way to resolve the problem I've given myself? Or do I need to delete my entire catalog, unzip everything, and then start again?