Post any defects you find in the released or beta versions of the ImageMagick software here. Include the ImageMagick version, OS, and any command-line required to reproduce the problem. Got a patch for a bug? Post it here.
identify: unable to decode image file `error.jp2' @ coders/jp2.c/ReadJP2Image/384
That particular error is generated when Jaspers' jas_image_decoder() method fails to decode a JP2 stream. In addition, we tried displaying / converting the image with ImageMagick 6.4.6-1 and there were no complaints. We're not sure why its failing for you.