Is holographic no longer vaporware? (was: Let's develop an open-source media archive standard

From: Hans Franke <>
Date: Fri Aug 13 08:45:14 2004

Am 12 Aug 2004 12:40 meinte Fred Cisin:

> On Thu, 12 Aug 2004, Stan Barr wrote:
> > > BTW what happed to holographic storage anyhow?
> > Work is still in progress. Shizuka University in Japan recently demoed
> > a device that stores 2000 gigabytes of data in a 1cm cube of material.
> > Reading and writing the data is still too slow for a practical device
> > though. You could archive a *lot* of data with one!

> Not necessarily doubting, but was that "stores", or "can store"?
> Many years ago, I attended a presentation about a holographic
> system the "could store" MANY gigabytes per cc. The phrase
> "can store" was used a lot. When asked about current progress,
> they were VERY evasive. After about a dozen questions, they
> admitted that they had not yet achieved the multi-gigabyte
> capacity. After many more questions, they finally admitted
> that the current capacity was 27 bits. It is a good proof of
> concept, but the differentiation between projection and
> accomplishment is significant.
> 'course by now, they very well might have reached the
> capacity goals.

Well, as it looks, the Stuttgart people already store (and
retrive) a terrabyte (1000 Gig) in a 1 cm^3 cube. So the scale
might be right.

> Similarly there is a proponent of alternate fuel vehicles who
> is constantly quoting specs that include impressive results.
> He is very evasive about timeframe of availability.
> But it turns out that his vehicle is NOT in production.
> There isn't even a prototype! His "data" is all results
> of "simulations", and many of his "can do" numbers require
> a complete restructure of society. Even when explicity
> challenged, he adamently refuses to acknowledge a difference
> between possibilities and existence.


I'm already happy with what's available. As for myself I'm a
hugr fan of the hybrid idea, but in reality, modern Diesel
engines are at least at the same level of fuel efficency if
not ahead. Meredes is even working on a large Diesel hybrid,
but then again, I can't afford Mercedes prices :(

VCF Europa 6.0 am 30.April und 01.Mai 2005 in Muenchen
Received on Fri Aug 13 2004 - 08:45:14 BST

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