The Cisco Digital Media Player 4400G is now obsolete (past End-of-Life and End-of-Support status).
End-of-Sale Date: 2014-10-10
End-of-Support Date: 2019-10-31
Cisco's End-of-Life Policy
If you want support information for the Cisco Digital Media Player 4400G documentation, it may be available through Cisco.com Search or in the Cisco Community