Uploaded February 2026 | Updated September 2026, 2 weeks ago
Before the CD-R there was the WORM Optical Disc. Today it's often confused with its slightly younger brother the rewritable Magneto Optical Disc. In this video we will touch on all three formats, then look at one of the largest physical optical formats in the word and its drive, the Sony WDD-931.
If you are a little lost in the direction in this video and the purpose of Write-Once optical storage it may be a good idea to watch these two episodes of The Computer chronicles:
Optical Storage Devices (1985) youtube.com/watch?v=5TcsOgy9weg - Discussions on the emerging Optical Storage Markets, how WORM stores data under DOS and George Morrow throwing his usual shade.
Optical Storage (1990) youtube.com/watch?v=7JQmmoJO7G8 - The emergence of new commercial and educational applications, Sony discusses its two new optical storage products (which we see in my video) and the foundational discussions of how to store more multimedia onto one disc.
Remember to follow me on Bluesky at "@CelGen.org" to keep up to date on what I am doing and what might be happening in the next video.
Before the CD-R there was the WORM Optical Disc. Today it's often confused with its slightly younger brother the rewritable Magneto Optical Disc. In this video we will touch on all three formats, then look at one of the largest physical optical formats in the word and its drive, the Sony WDD-931.
If you are a little lost in the direction in this video and the purpose of Write-Once optical storage it may be a good idea to watch these two episodes of The Computer chronicles:
Optical Storage Devices (1985) youtube.com/watch?v=5TcsOgy9weg - Discussions on the emerging Optical Storage Markets, how WORM stores data under DOS and George Morrow throwing his usual shade.
Optical Storage (1990) youtube.com/watch?v=7JQmmoJO7G8 - The emergence of new commercial and educational applications, Sony discusses its two new optical storage products (which we see in my video) and the foundational discussions of how to store more multimedia onto one disc.
Remember to follow me on Bluesky at "@CelGen.org" to keep up to date on what I am doing and what might be happening in the next video.










