| Archival recordable Blu-ray disc: designed to last at least hundreds of years | 
| Can be written to and read by most modern Blu-ray drives | 
| Capacity: 25GB | 
| Durable M-Disc recording layer resists light, temperature and humidity for centuries | 
| M-Disc BD-R (Recordable): write once, read many times | 
| Pack of 5 discs in jewel cases | 
| Printable surface for compatible inkjet printers | 
| Recording speed: 4x |