Reading 12-bit DPX files?

I received an image sequence from a client. I go to import these DPX files into AE CS6/Mac and I get an error that AE can't read 12-bit DPX files. (I thought DPX only came in 8 and 10 bit flavors)
Is there a 3rd party plug-in that can read 12-bit DPX?

See this:
http://fnordware.blogspot.com/2012/06/dpx-plus.html?m=1

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hi...
I'm not using any plugins... and I ve just tried disabling OpenGL drawing .. still no luck..
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