as the man said, yes it uses regular film cassettes. In the 30s to the 50s and beyond Leica, nikon and Contax also made proprietary cassettes that had double walls and built in gates -- the lock on the bottom of the camera turned a key on the cassette and opened it to let the film out, then closed it after yu re-wound, so no felt light trap (and scratches) was necessary.
Those cassettes can be bought, although the Contax ones are pretty scarce and expensive. Leica ones cost about $10 each, but last forever and don't scrtch.
Unless you are a geek, use regular film cassettes. All cameras using 35 mm film were made to use the standard Kodak cassette.