This Roland Sound Library L-503 is a must-have for any music enthusiast. It is a versatile and powerful modular synthesizer that can be used to create stunning sounds and music. With its digital technology, it offers endless possibilities for musicians and producers to explore and experiment with. The S-550 Sampler is an essential part of this sound library and is perfect for creating rich and dynamic soundscapes. It has been designed and manufactured in Japan to ensure the highest quality and reliability. This Roland Sound Library is ideal for anyone looking to take their music production to the next level.all discs are sealed and have never been opened