Polk Audio DP-1 用户手册

The power is on but the machine will not
play a MP3 disc.

The disc is not inserted properly

The disc is not an ISO9660 disc

The disc does not have an MP3 file in the 
first track.

Open the disc tray and make sure the CD is
inserted correctly in the tray and that the
label side is facing up.

The disc was probably made using a non-
compatible software program, such as
Direct-CD. You’ll have to re-burn the disc
using a software program that will make
ISO9660 formatted discs. Check the
ReadMe file that comes with the computer
program to see how this is done.

The disc is a multi-session disc with the
first session not containing any MP3 files.
You'll have to make a new disc with a MP3
file in the first session. Check the ReadMe
file that comes with the computer program
to see how this is done.