Thank you for viewing! Although I don't know the manufacturing year of this product, it's quite old and a very rare item that's not widely available. Inside, there's software, an instruction manual, and music program creation code. A total of 20,040 lines of code are written, and you can create music by following them. Also, by modifying the program, you can create music to your liking on your own PC. A detailed instruction manual is included, so it can still be used today. Overall, there is noticeable dirt, but I will clean it as much as possible before shipping. Brand/Manufacturer: SOUND DESIGNER Model Number: PC-880lmkiisr Other: OM Caporation Showa Software Rare Software Sound Designer Programming Code Program Music Music Related Composition PC Game PC Game