I assume "widely circulated eggs" as the once which I sent you, which also were the once that was on that Japanese website which was taken down more than a decade ago. Actually the events from there were never really widely circulated as you might think. Not many people know much about "files" back then and even fewer people who downloaded the eggs ever came to the English forums. Though those who had the events didn't exactly trade them easily either. (You know the guy who's difficult to deal with) As far as I know, the once in my circle are the only people who has them, which almost all have retired. So nope, I do not think that they are widely circulated. Although @ajxpk did mentioned that Japanese traders today still can easily download the events from somewhere, which I don't know the link of..
Sorry if this is in the wrong thread.