I put (my) iso go on the
Sd (not micro) card or EXHD ( not flash drive)
Mine are on an EXHD
(Drive Name) > gave>(game name) >game(iso)
JIC for you knowledge for bam cranium
I would use the External Hard Drive, the bigger one and not those smaller ones. Of it is a small on I woy not get those thin ones ( you know the one I am talking about). Another fact is that those green ones are what you should be looking for Green EXHD go to sleep when no on use, and all of mine are in use, and I have to turn mine off when I am not using mine so keep that in mind.
Good Luck