It all depends on who looks at it package. At the PO I frequent, she never asks and questions, I just say media mail she says OK. We talked to her today and she said she had no clue I couldnt mail comic books media mail. I was like really. Some post office employees act like its hurting them to take this comic book media mail package. I tried to mail a sport card in a top loader at another post office and the lady said OH, THIS IS RIGID ITS GONNA COST MORE. I WAS LIKE OMG. I said never mind, she was shocked and said I don't wanna mail it, I said nope. I just took it to my local lady, she took it, weighed it (under and ounce), and said thanks. Sometimes all u have do is go to the other guy and do it right in front of the one that said no just to get their reaction.