![Do these count as vintage audio? New old stock Sony Metal Master 90 and TDK MA-XG90 cassettes. What makes them so valuable? : r/vintageaudio Do these count as vintage audio? New old stock Sony Metal Master 90 and TDK MA-XG90 cassettes. What makes them so valuable? : r/vintageaudio](https://external-preview.redd.it/rKNYX6NXpoWvE8LvUSrnyjm7BvH0T2W50qGo5jVSyu4.jpg?auto=webp&s=28eb39d64d3dc754ee34585a95db5b6772ad436d)
Do these count as vintage audio? New old stock Sony Metal Master 90 and TDK MA-XG90 cassettes. What makes them so valuable? : r/vintageaudio
![Sony C-90 SMM Super Metal Master | Compact Cassettes | Tape Material | Recording Separates | Audio Devices | Spring Air Sony C-90 SMM Super Metal Master | Compact Cassettes | Tape Material | Recording Separates | Audio Devices | Spring Air](https://www.springair.de/media/image/8f/31/3b/h55169-1-55169a.jpg)
Sony C-90 SMM Super Metal Master | Compact Cassettes | Tape Material | Recording Separates | Audio Devices | Spring Air
![Lot of 5 New / Sealed SONY Metal Master 90 Cassette Tapes - Type IV TOTL! Photo #1334000 - Canuck Audio Mart Lot of 5 New / Sealed SONY Metal Master 90 Cassette Tapes - Type IV TOTL! Photo #1334000 - Canuck Audio Mart](https://img.usaudiomart.com/uploads/large/1334000-lot-of-5-new-sealed-sony-metal-master-90-cassette-tapes-type-iv-totl.jpg)
Lot of 5 New / Sealed SONY Metal Master 90 Cassette Tapes - Type IV TOTL! Photo #1334000 - Canuck Audio Mart
![Sony Metal Master MTL-MST90c with ceramic case | Compact Cassettes | Tape Material | Recording Separates | Audio Devices | Spring Air Sony Metal Master MTL-MST90c with ceramic case | Compact Cassettes | Tape Material | Recording Separates | Audio Devices | Spring Air](https://www.springair.de/media/image/58/5a/88/66598_600x600.jpg)