I love very expired film!
What I've read/heard is that rodinal is an old recipe thats's been around for quite a while and thus will work better with old film.
Btw Satish if my memory is correct I developed the '61 plus-x in Xtol stock and added a minute developing time for every decade it is expired.
So normally that would be 5,25 min. (mass dev chart) and roughly added 5 minutes, since it's a little over 5 decades expired, making about 10 minutes developing. Though it was heavy on the grain.....
(1st Photo)
So using 'old style' developers seems the smart thing to do for old film, also keeping in mind 'Satish's-rodinal-1:100-will-develope-anything
, since you might not want to take the risk losing a film. Oh and newer Agfa apx films love Rodinal, but not so sure if that is any help
I'm still looking for an excuse to give this (2nd photo) ago, but both my bulk loaders are still full of recordak dacomatic (exp. 1976) and double-x so...