A lot of the instruments in Halion One are listed twice, with two different symbols (see screenshot below.)
I believe one means the instrument was created with real samples and I’m not sure what the other means. What do they both actually mean, and which is the best to use?
Sorry, I don’t know these icons. But you can add Media > File Type column to the results list of MediaBay. Then you can see, what kind of file are these.