Is this with all DVD disc? Your manuals troubleshoot says: DVD or CD does not play • Make sure the Acoustimass® module power cord is inserted securely into the AC (mains) power outlet and into the power connector on the Acoustimass module. • Check to see if the Play symbol in the display is lit. • After pressing the CD•DVD button, wait a few seconds and press Play. • Make sure the disc is properly inserted (label-side up). • Eject the disc and try loading it again. • Clean the disc to remove fingerprints, dust, or dirt. Refer to "Keeping your discs clean" on page 41. • Try another disc. Some discs are defective and will not play. • Make sure the disc is compatible with the media center disc player. Also make sure the region codes match. Refer to "Checking for disc compatibility" on page 42.