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chas_m

 
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Member Since: Jan 22, 2010
Location: Victoria, BC
Posts: 16,412
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Mac Specs: 2009 MBP, Black speakers, Black Benq second monitor, black(ish) iPhone 5s, Black 2012 iPad, etc.

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The reason you are getting the warning about failing to be recognized is because you are not properly ejecting the card. For the Mac, you MUST drag the card to the "trash" (which becomes an eject button) or right-click and choose "eject" **BEFORE** you disconnect the card from the machine, or you get directory damage and, eventually, an unreadable card.

The projector likely has its own procedure for this but I wouldn't know what that is.

As for video codecs, yes it's a nightmare isn't it? You can put the blame squarely on Microsoft for that one -- between them changing their minds about their own preferred codecs over the years, the inevitable change and improvements in video codecs and their policy of letting any Tom **** or Harry foist another video codec on the masses, there are now (literally) hundreds of them out there.

Apparently this projector is quite finicky on what it will accept. If you can quote the relevant specs from its manual, we might be able to offer more assistance.
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