Denon MM212 User Manual page 51

1. Connect the player to your PC.
2. Run the MP3 Player Disk Tool provided with the unit.
3. First, you can see the format tool. Select the "Partition and Encrypt"
tab, and select an appropriate capacity for the disk to be encrypted,
and check "Set user name and password". In "New user name" , enter
a user name; in "New password", enter a password. In "New password
confirm", enter the same password, and click "Start" to start partitioning.
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