Ive been doing a lot of tape stuff lately. In the days of cassette recorders
id use rubbing alchohol which did work quite well, but now im onto reel to
reel as a mixdown deck, so there is no compromise. I saw some solution of
stuff that had Isopropanol, Ethanol, and Methanol alch. but I never tried
it. Someone else recommended stay with rubbing alch. but use a really pure
(like 95% or up) version...

Dave