Amazon.com: 25 Pack Millenniata M-Disc DVD 4.7GB 4X HD White Inkjet Printable 1000 Year Permanent Data Archival / Backup Blank Media Recordable Disc : Electronics
M-Disc DVD R - Walmart.com
Ritek Mdisc M-disc Mdisk Dvd R Recordable 4.7gb Permanent Storage Lifetime Archival 3pcs/lot - Blank Disks & Accessories - AliExpress
FYI for anyone thinking about using MDisc - the blank / hub printable ones are about $10/spindle cheaper and basically the same product! : r /DataHoarder
Pioneer BDR-S13J-X M-DISK BDXL Compatible BD Drive Premium Model Japan NEW 4988028474996 | eBay
Ritek Mdisc M-disc Mdisk Dvd R Recordable 4.7gb Permanent Storage Lifetime Archival 3pcs/lot - Blank Disks & Accessories - AliExpress
LG WP50NB40: External Blu Ray Dvd Drive | LG USA
Amazon.com: Verbatim M-Disc DVD-R 4.7GB 4X with Branded Surface - 25pk Spindle - 98908, Blue