This is a set of three items: the PC Engine Core Grafx 2, the Super CD-ROM2, and the AC adapter. I was playing it about a year ago, and the video from the CD-ROM unit worked, but there was no sound. The sound did come out from the PC Engine Core Grafx 2. The open button doesn't respond well, and the lid won't open unless you lift it up. You have to pull the cover up with your fingernail while pressing the open button firmly. Therefore, this is being sold as a junk item. Please understand.