Meh, I don't know. The E-mail looks a little fake to me. The misspellings alone are enough to make me question the validity of the E-mail. Capcom may have a bad translation department, but their spelling is usually correct.
YOU MUST DELETE ALL THE LETEERS AS WELL AS THE REFERENCE TO "MEGA MAN" AND "ROCKMAN" RIGHT NOW.
Huh? If all references to Mega Man/Rockman were taken down, then this wouldn't be much of a fansite now would it? Again, there are lots of Rockman fansites (most of them host music too), and Capcom isn't trying to close them down. My guess it that you have someone who is for some reason or another bent on taking this site down, and they are just posing as Capcom. Maybe they wanted the C&D letter removed because they will get in major trouble if the real Capcom IP people see it. I don't blame you for following the instructions of the E-mail, but I am just making an observation.
I have been coming to this site for a long time, and have enjoyed the media that was available here. It is a shame that most everything is being taken down. Since Atomic Fire is merging with Mega Man Network, there is a slight shortage Rockman media. I guess the shortage just increased.
Too bad that this happened. Good luck on getting this issue worked out.