I was able to find a couple of articles that mirror the one below, but nothing more current than 2004, I also would appreciate a link to this.http://www.pcworld.com/article/17328-1/article.html
IBM Packs 1GB Into Stamp-Size Drive
Updated Microdrive can enhance storage in digital cameras, handhelds, and other portable units.
Gaea Zhou, PCWorld.com
Wednesday, June 21, 2000 12:00 AM PDT
Imagine stuffing 1000 novels onto a stamp-size hard disk. It's not a dream with IBM's updated Microdrive, which triples its capacity to 1GB.
The 1GB platter measures 0.2 inches by 1.4 inches by 1.7 inches, and weighs about half an ounce. In September, a travel kit including the Microdrive, PC Card adapter, and field case will be available priced at $499. IBM also offers a 512MB drive for $399 and a 340MB drive for $299 (down from $499 at its introduction in 1998).
As for the holographic disk, here a recent article which makes for interesting reading. http://arstechnica.com/news.ars/post/20060804-7424.html
While a few consumers have dived headlong into the war over over HD-DVD Blu-ray HD-DVD I mean Blu-ray dang it, there are those of use who have elected to avoid that particular religious issue until we figure out which format is likely to offer the better afterlife. Should any real market success take long enough to occur, our procrastination may be rewarded with what could turn out to be the real next-gen optical media. Long-promised but rarely seen, commercially available holographic storage devices will become a reality before the end of the year, in the form of a system developed by InPhase Technologies and built by Hitachi Maxell.
Holographic storage has been Three-to-Five Years AwayTM for some time now. While we here at Ars may only have been talking about it for around 5x10-2 centuries, the idea was originally proposed at least as early as 1963 by Polaroid researcher Pieter J. Van Heerden. Lucent later did some work on the concept, then in 2001, the company spun off InPhase with the goal of developing a commercial application for the technology. In a nutshell, holographic storage increases density in an optical medium by storing the data in three dimensions instead of two.
How much greater data density? In the Hitachi Maxell device, a single disc about 1cm larger in diameter than a CD will buy you 300GB. By way of contrast, HD-DVD currently offers a maximum of 30GB on a 2-layer disc, and Blu-ray tops out at 50GB. Although upgrades are in the works that promise to increase the capacity of both of those formats, even the most pie-in-the-sky predictions fall short of what is planned for merely the first commercial generation of holographic storage. Future plans for that medium include boosting the capacity to 800GB in two years, and 1.6TB per disc by 2010.
Don't get too excited, though. First generation systems tend to be expensive—on the order of US$15,000 for the reader/writer and between US$120-$180 for the discs. Also, the media is write-once, meaning that the system will be targeted at enterprise users who need a high-density backup solution. Even then, IT departments may need assurances that the photopolymer medium will remain stable over time.
Still, the real money lies in coming up with a product that can be sold in the mass market. With that in mind, InPhase and Hitachi Maxell have been discussing what form a consumer version of the technology might take. One possibility that has been mentioned is a disc around the size of a postage stamp, which would probably hold about 75-100GB.