Did a little research on BDXL because the need for multi-decade backup longevity, which I never worried much about, became more relevant now that I recently retired and have time to read some 80s 5.25, 3.5 floppies and 8mm/Hi8. Would be fun to see some of the first assembler I ever wrote.
I learned:
* Standard BDXL: ~$6/disc / M-Disc BDXL: ~$12 (longer lasting)
* Write/verify to 100GB BDXL discs at 4x is ~2 mins/GB.
* TFA says "128 GB BDXL never made it to market due to the 2016 bankruptcy" but a larger reason is that even though 128GB ( 4 vs 3 layer) was in the standard, it wasn't well-characterized. Turns out adding the fourth laser was harder/costlier than expected and read reliability was poorer. 100GB 3 layer is the sweet spot.
Comments
Did a little research on BDXL because the need for multi-decade backup longevity, which I never worried much about, became more relevant now that I recently retired and have time to read some 80s 5.25, 3.5 floppies and 8mm/Hi8. Would be fun to see some of the first assembler I ever wrote.
I learned:
* Standard BDXL: ~$6/disc / M-Disc BDXL: ~$12 (longer lasting)
* Write/verify to 100GB BDXL discs at 4x is ~2 mins/GB.
* TFA says "128 GB BDXL never made it to market due to the 2016 bankruptcy" but a larger reason is that even though 128GB ( 4 vs 3 layer) was in the standard, it wasn't well-characterized. Turns out adding the fourth laser was harder/costlier than expected and read reliability was poorer. 100GB 3 layer is the sweet spot.