Back in the late 80s, I bought a Led Zeppelin IV tape. The song order was quite different that it is now. Stairway to Heaven was the last song on side B, and Rock and Roll was the second last song. On side A, I think Black Dog was the first song (as it is now), but I can't remember the rest of the order. But I'm 100% certain that the last two songs on side B were Rock and Roll and Stairway to Heaven, respectively. Does anyone know what I'm talking about, and know what the track order was? Thanks!