Digital 4X 128GB BDXL Quad Layer BD-R XL White Inkjet Printable Blu-ray Recordable 50 Year archival Discs - 10 Discs

Disks worked perfectly for offline archiving of a large group of files. Write speed was decent for the amount of data. Must use a burn program like ImgBurn to take advantage of these larger discs as Windows will not natively write to them.

The Sony QUAD layer blue ray disk works great. Burned with: Windows 7 desktop with recent LG M Disc compatible burner (2022). Burn S/W is CyberLink Power2Go which came with the LG burner. At 4X speed and verification turned on - it takes over 3.5hours to burn a full 121GB disk of data;SO YES it will take a while to burn. It will probably take less time if verification is turned off on the Power2Go s/w GUI.The disk is capable of adding more data if you choose not to finalize the disk via the S/W GUI...As usual with all memory devices, the actual practical storage capacity is less than 128GB, somewhere around 121 to 122 GBDisk is supposed to last 50 years, so I will post an update in 50 years....Paid @$98 including tax...Free shipping.Unlike M-Disc- there is no recommendation by Sony to store the Sony disc in an individual jewel case.

I tried burning a single large file (~105G) with these twice. Both discs failed around the 75% mark. I went ahead and returned these as these disks are expensive not to have all of them working.