How do you load CDs in dosbox pure?

When I use the manual scan function to create a playlist, it won’t show me any of the files from .bin .cue .rar .iso formats when I run dos box pure. In other words it doesn’t perform an img mount but it does read content from zip files. I did not install the core from the online updater, I did it manually from a download. When I use the load content option it does not show dosbox pure as an associated core plus it will not let me delete the core. Is my installation of the core busted?