Recent Comments:
Universal exec sez Wanted:Blu-ray as The Matrix:DVD {Engadget HD}
Jun 27th 2008 1:58PM TT-
We didn't have a 'technical' recession but a recession isn't as big as you make it sound either. It's simply a softening of the economy.
Economists have rewritten their books to the point they no longer correspond to economic realities. If you stick to the definition of a recession we are not in one right now since in terms of USD our growth has increased.
There was the 90-92 US recession as well as the 2000-2002 US recession. That is if you believe we are in one now.
Japanese researchers devise method for cramming 42GB on a DVD {Engadget HD}
Jun 27th 2008 1:50PM Ah holy crap you people are crazy.
Even right in the short blurb it says that this technology is incompatible with normal dvd players.
This has nothing to do with BD or current DVDs.
What they are doing is writing and reading the pits at a series of angles requiring lasers that are either fixed at 9 positions or a single laser that can tilt to one of 9 preset angles. It is likely using some sort of interference filter to increase the s/n ratio due to adjacent pits.
Although it works at the same wavelengths it is very similar to dvd's it is also very different. It would require very different production equipment if this were ever to be produced.
The process they adopted seems very similar to lenticular printing.The kind of printing they use to make those animated cups at 7-11. If they did this right they should also be able to get 9x the throughput on sequentially written data as compared to a standard disk.
It seems from the original press release that they have only managed to get this working with a silicon wafer as the substrate. I'm a bit lost on how they plan to use this with polycarbonate disks that use a nearly flat recording layer.
