> I'm in the process of digitizing some open reel tapes.
> Some of the tape is ½ mil Mylar and it SQUEAKS.  Is
> there any kind of lubricant I can use to stop that?
> Any suggestions would be appreciated.
>

I got good results from using an isopropyl drip type treatment. Marie 
O'Connell has developed a system for this, which I believe is detailed on 
Richard Hess's website, but I used a cotton plangent and a shot-glass of 
alcohol to apply the alcohol to the tape before it passed over the playback 
head. Very tedious to do for an hour long tape, but it worked..

-Matt Sohn