There are a total of 140 MD discs. Approximately 50 of them are made by SONY, and the rest are from manufacturers such as Maxell, TDK, and Axia. All of them are used, but their operation has been confirmed and there are no problems. Since I no longer use them, all the discs have been initialized. Due to being used items, there are scratches and scuffs on the outer packaging, but there are no cracks. They can be used for both playback and recording, so please use them with confidence.