Note- these four cassette tapes appeared to be mono only, not stereo. However, as is common, sometimes the mono audio is leaked over to the other track weakly, giving the appearance/sound of stereo. They were transferred as stereo by default, so you may find that only the left or right speaker has sound, of only left or right has much louder sound.
Two of the tapes were side A only, side B blank
It was hard to determine the order of the cassettes from their markings and from the narrator saying which tape or side he was recording.
Rainbow refers to the multicolored tape
Dictaphone refers to the Norelco tape.
Right click on name to download. Click on bar to play.