everyone be review the big issue . here be a few detail could be important to some people : - if you only have vision in one eye , can you still get a 3d effect ? answer : sort of . it be like look at lenticular postcard -lrb- or the lenticular cover of Street Fighter iv 3d -rrb- . you wiggle the screen back and forth , and the image switch back and forth . this have work well with some of my relative . however , it probably be not a good strategy on most game . - I try insert the sd card from my camera , and find I could view all the photo on the 3d ! it be a little slow , but it do work . someone have already mention that you can also listen to mp3 music file this way . and give that the system update give you a 3d music video -- will a later update give we the ability to see we own video ? or even record 3d video on the 3d ? not sure , but one can hope . as it be now , the short video that be on my sd card do not show up on the 3d . - what happen when I insert the 3d sd card into my camera or computer ? just try this . you can see 2d version of you 3d picture . - the camera quality remind I of lower cost camcorder I have have -- they work pretty well in bright lighting , but look grainy indoors . there be several adjustment like lowlight , b & w , sepia , negative . - I have be a big fan of 3d for many year , have enjoy the 3d effect of many movie -lrb- creature from the black lagoon , Comin ' at Ya , not to mention Avatar and Green Hornet -rrb- and the old viewmaster and so on . so I be surprise to find that I , too , experience headache after a couple hour use . my guess be we will all get accustom to the glasses-free 3d effect with time and experience . - Update : there be nothing real special about the ar card . I make a color copy and it work fine . I also scan it in , and play off my computer screen and my iphone ! hilarious !