Left field drum breaks

Hi, so I downloaded AJ halls left field drum breaks and can’t seem to see any of the previews of the sample packs to show up, I drag and dropped the files into an expansion folder so I see the folders in my external hard drive on my Mpc. A placeholder of an A shows up for the drum breaks sometimes but I can’t seem to figure out why.
How do I fix this for future 3rd party sample packs? TIA

They are not MPC expansions, hence you cannot install them as expansions. Just copy the folder to your disk and load the breaks under Browser > Places.