I heard it was only the 100! So, it is the 50 as well?? Not a happy camper....I love velvia and I am only just getting into film and love experimenting with the stuff. My friend puts his in the freezer....we just bought up a big lot not long ago ..... well, he did but my funds were low, so now I am even unhappier!
EDIT: If I read the above post I would realise the 50 is safe!!