I just tried Dan ed's advice. I have an old GENEVA Audio/Video Tape Eraser which I used to use to erase VHS tapes and demagnatize CDs. I listened to Bill Evans Trio, "Waltz for Debby" and Brubeck's "Blue Rondo a la Turk" on Time Out. Then I demagnatized each record by swirling the GENEVA around very slowly and very close to the record surface and then pulled it away and turned it off. I then listened again, and sure enough, there was a very subtle increase in detail across the frequency range. The drum sticks and brush work on the symbals became more clear and distict. It had been a bit tizzy before. Also I heard slightly more body to the bass and harmonics from the strings. The effect was small but noticable. It is definately worth trying and experimenting with.