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How's this for a stocking stuffer? A portable DVD player that projects the movie right before your eyes through a device embedded in your glasses.
  
It may sound far-fetched, but Mark Spitzer is already making the technology work in industrial applications and hopes to put it at the top of next year's holiday gift lists.
  
Head-mounted displays, or HMDs, the term for products like Spitzer's image-beaming glasses, have long been a promising area of wearable computing, but until now showed little promise as a consumer device. 
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