USPS reduced costs for shipping media material; Do vintage Playboy magazines from the 50's qualify as media materials?
The vintage magazines are considered to be media materials. This is because, they have already been used and they also contain print/ educational materials. You can read more on this at https://www.usps.com/ship/media-mail.htm.
Yes, any print material, or electronic data, is considered media, but remember, it is also some of the slowest types of delivery