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> The applications go further than just DVDs, there is higher quality laser printers and scanners (like the
> ones at the grocery store) for two more examples. I remember reading that there were a few more
> possibilities with the blue laser but can't remember that at the moment.

Hi Tinker,

those interested in details of the blue/violet GaN LEDs and lasers, can find details in a slide show here:

There are also slides which explain the use of GaN lasers for DVD storage, and why they pack information more densely than previous red lasers.

There you'll also find the details of a book about blue LEDs and lasers by one of the key inventors.

Best regards,

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