A patent filed earlier this year suggests that Nintendo are active in joint-research with a company called InPhase Technologies, looking into potential holographic storage solutions.
"Disclosure is herein made that the claimed invention was made pursuant to a Joint Research Agreement as defined in 35 U.S.C. 103 (c)(3), that was in effect on or before the date the claimed invention was made, and as a result of activities undertaken within the scope of the Joint Research Agreement, by or on the behalf of Nintendo Co., and InPhase Technologies, Inc".
Using holograms, discs are able to store much more data than current Blu-Ray or DVD medium, and transfer rates are higher too. According to the InPhase website, it's the way of the future.
The lack of storage is a common complaint for Wii, but sense dictates that this holographic stuff won't get used until the next generation of consoles, if at all.
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