【Extremely Rare, New/Unopened】 "Sound Beyond Imagination is Here" SONY Super Metal Master 90 Sony Super Metal Master 90 Audio Compact Cassette C-90SMMST Audio Cassette Tape Metal Position Times have evolved, and this is now difficult to obtain, especially in new/unopened condition. This is a very valuable item as a collector's piece. *Regarding the condition, there are subjective aspects, so please be sure to look at the photos and understand before considering a purchase. Also, please understand that there may be areas that are overlooked during the inspection. Size: Approximately 13 x 8 x 1 cm / Total weight approximately 138g No accessories, only the main unit. Condition: This item was carefully stored by the previous owner after purchase without being used. There are no scratches or tears on the vinyl. Although it is a new/unopened item, it has been stored for a long time, and its operation cannot be guaranteed. Please understand this before purchasing. We will ship quickly via Yu-Packet Plus. Thank you. Super Metal Master The Super Metal Master cassette tape was released in September 1993 as the last top-of-the-line tape. The half is the same as the previous one, but the difference is the case. It evolved from a plastic case to a magnificent metal (aluminum) box. The price was high: 2,000 yen (excluding tax) for 46 minutes, 2,300 yen (excluding tax) for 60 minutes, and 2,600 yen (excluding tax) for 90 minutes. At that time, the running cost per minute of recording time was even more expensive compared to the DT-120 DAT blank tape (120 minutes in standard mode recording, 1,600 yen excluding tax) released by the same company, and it was not an amount that could be easily used, further emphasizing the special luxury and high sound quality.