I have lovely, untouched Landsat 8 images from USGS that I would like to merge/mosaic. However, I can't find a function to somehow ignore the zero-value wedges. I also processed a stack of files so that they don't have the zeroes but when I add those to a mosaic dataset, Arc seems to lose its s*&^ and jumbles up the values in the output bands (and for many, just puts in the maximum value, not the value from the input).