Using the Denon DCD - 600NE is easy. First, insert your CD, CD - R/RW, or other supported disc into the slot - loading mechanism. Then, connect the player to your amplifier using the RCA stereo or optical digital outputs. You can control the player using the included remote. When you're done, simply eject the disc. As for maintenance, keep the player in a clean and dry place. Wipe it with a soft, dry cloth regularly. Avoid exposing it to extreme temperatures or humidity. If you encounter any issues, refer to the user manual or contact Denon's customer support.