Anyone deliberately using Media Mail to send non-media is simply stealing. If you lie and declare they are media items, they can open them if they are suspicious and it will be returned to you.
Can I use my own package for Media Mail?
Yes, you can use a box to put those 8 books in for media mail. Debi, you can use any size box as long as it isn't a priority mail box (will arrive postage due for the higher priority rate if caught). I just recycled an old appliance box to mail 45 books out in a BOB deal.12 ago 2009
Can you ship other things with Media Mail?
You can send books, videotapes, DVDs, CDs, printed music and other sound recordings through Media Mail as long as they weigh less than 70 pounds. Although you won't pay as much to send these items via Media Mail, they can take longer to get to their destination. ... The savings with Media Mail can add up.
What Cannot be shipped Media Mail?
Media Mail rates are limited to the items listed below: Books (at least 8 pages). Sound recordings and video recordings, such as CDs and DVDs. Play scripts and manuscripts for books, periodicals, and music.