I bought some expired Svema 64, expired long time ago (the box says "develop before Dec 1992"). I tested in Rollei Supergrain and xto 1+1 and it is very usable film. A few examples in my flickr (the development time was not ideal, just tried to guess. I am sure better results can be achieved):
I bought too many, so I am selling 20 rolls. 17 EUR per batch of 10 plus shipping (at cost). Paypal on me.
P.S. Please note - the film is without the spool and cartridge (that is how all FSU film was sold back in time )