Be sure to add me to your favorites list Original Yamaha Installation Guide Booklet - Book Only - For Use With the Accessory CD-ROM that is Used with Many PSR, DGX, YPG Model Keyboards. This is an original Yamaha Installation Guide Book, for use with the Accessory CDROM that is used with many PSR, DGX, and YPG model electronic keyboards. This is for the book only, as seen in the photos, I do not have the CD-ROM software at this time. If you have the software, but not the booklet, this is what you need. This one is in very good condition, with minimal wear on it, and I have several available, all in the same condition. It has English, German, Spanish and French sections. Again, this is for the booklet / install manual shown in the photo and described here. Original Yamaha document, printed in Japan! This is a manual or document, this is NOT a piece of equipment or instrument. If you have any questions, I'm always happy to answer them. Thanks for looking! Check out my Store!