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FAQ: Why does merging my two rasters cause ArcMap to crash ?

Question

Why does merging my two rasters cause ArcMap to crash ?

Answer

Although this functionality is not exposed in the default user interface, the method IRasterGeometryProg>Merge will cause ArcMap to crash if non-grid rasters are used. The only workaround is to convert the two rasters into ESRI's Grid format and merge them.