on 11-04-2012 09:01 AM
Here's the section from the USPS manual. Any recorded media such as books, CDs, and DVDs are OK. You can't use MM for video games, blank media, or periodicals (magazines, comic books):
on 11-04-2012 09:44 AM
And, in addition to the great responses above, remember that First Class Package is, in some cases, cheaper. It is always faster and comes with Delivery Confirmation.
on 11-04-2012 08:57 AM
Click on the tab for Rules and Restrictions.