Is this possible? (Storage) (Off-topic?)

Sorry, but this has been bugging me for quite some time. In Star Trek, they use "Isolinear" based memory circuts to store information in both the short and long term. So, from the looks of it, it's some kind of crystal, and can transmit it's data very quickly, and with no moving parts, so I'm guessing that it's similiar to today's RAM. Now, for the hard part: It can hold entire encyclopedia's in tiny amounts. In one episiode, they had nanites, little robot-bugs that could hold "gigabytes of information," and were microscopic. Furthermore, in some episodes, they find Chodak and T'Kon ruins, between 900,000 to 700,000 years old, with half or more of the data intact. Was crystaline storage ever attempted like this? Is it possible? Feasable? Thanks, Tim D. Hotze