Be sure to add me to your favorites list Casio USB Manual And Driver CD-ROM Disk in Sleeve Version 1.2 for CTK-720, LK-100, and Others. This is an original Casio CD-ROM disk for Windows "USB Manual and Driver CD-ROM" for use with the CTK720, the LK100 and other Casio models that use a USB port. The disk has drivers to install on your computer when using USB, and a manual for use with the USB driver. There are several languages available as well. There is also a SMF file converter for song files, plus 25 tunes in SMF format and sheet music in PDF format as well. This CDROM disk is in like new condition in it's open protective paper sleeve. It's an older disc, made for Windows XP, but it works fine on Windows 7 and 10 as well. This is now a hard to find original Casio disk. Thanks for looking, Check out my Store!