USPS Media Mail is the perfect solution and a very affordable option for sending CDs, DVDs and Books through the United States Postal Service. You can also track the packages you sent thanks to the USPS Tracking System.
How To Track USPS Media Mail
Request your USPS tracking number from the person sending you the package. Write down the number, so you can type it in when needed.
Visit the USPS Website (See link below). On the main page from the right-hand side you will see an option called "Track and Confirm." Enter your information into that field, and click the "Go" Button. You will then see information about your package. The information is updated at each station the package arrives at; therefore, it will not be in real time.
Call 1-800-ASK-USPS (8777) to speak with a customer service representative. You can call between 8 a.m. and 8:30 p.m. Monday-Friday and 8 a.m. to 6 p.m. on Saturdays. Provide the representative with your tracking number.
Determine if the package has arrived at the final destination by requesting "Signature Delivery." When the package arrives, an email can be automatically sent to your email address informing you that the package has arrived. If you work for a large company with a shipping area, this is a great way to know immediately that your package has arrived.