After many years in storage (in good conditions) I'm resuscitating my TEAC 3300-10 which was last used, I think, in the '90's (currently waiting for some caps). And I'm getting out the 10" tapes I used back in the '70's & 80's which were NOT always stored in ideal conditions. Some of the tapes have a bit of mildew showing along the sides of the tape on the reels. All of the tape I used back then was decent stuff; mostly Scotch 207 or TDK with a couple rolls of Maxell thrown in the mix & all 1 mil polyester if that matters. So with that explained, I have a couple questions: 1) Should I try to clean the tapes in any way & if so what should I use? 2) Should I just try to play them or would it be better to exercise them first by running them through a fast forward & rewind cycle? Any other advice from your experiences would be appreciated .