I think what the study shows is that listening to music goes beyond the encoding technique, like everything, it has the quality of contemporaneity; listening to music is made up of the music and the listening process, which includes the medium, vinyl, cassettes, cd, mp3 etc. We all have our way of remembering music, be it on 8 track, cassettes, or ipod. The current twenty somethings will reminisce about the old days, how their iPods sounded and how they would split their ear buds with their sweetheart of the day, just like the first guy and his Camero and sunsets with Susie :)

Its the same as photography, film, like cassettes, vinyl etc is no better than digital, its just different. The medium is an important part of any art form, possibly with the exception of literature. For the visual and music arts I have seen this phenomenon often but I am not sure if it applies much to books. The medium is largely the same I suppose - we've moved on from writing on pigskin, but for the past few hundred years and book today is much the same as a book from anytime, only the content has changed. The arts move, and are moved by technology at different paces. Possibly the Kindle will change things, but it hasn't had enough time to know yet.