@cstanhope @djsundog Ah, yes, I remember reading about InPhase, too! I think because of the words used in the name, I think of "versatile holographic disc" as a sort of generic for "holographic optical storage", for good or for ill. I've never met anyone who worked on those kinds of technologies before, though. There was a lot of nice hype about it and then it just kinda...went poof. If it's not too an uncomfortable question, why do you think that whole wing of industry didn't pan out?