I wouldn't be worried about emailing John at TunerCat(tc@tunercat.com) since that is his software. I don't have a black box here to test but the last one I did I used TunerCat and it wouldn't read the .bin file but would read the .cal file. I mentioned this to John and he said he must have "broken" something in one of the updates, so we laughed and that was that cuz it didn't matter to me at the time. So, he's aware, you might just have to give him a nudge ;)