I have some expired Acros 100 that I would be willing to trade for the Portra. It is sitting in a freezer a few hours away. Send me a message if you're interested, and let me know your e-mail. I can get in touch with you when I have it back in my hands. (I moved residences). It has been in a freezer since I purchased it, and was taken from a freezer in the store from which I purchased it.