ARC Standard Raster Graphic. Raster graphic data transformed to the Equal ARC-second Raster Chart/Map (ARC) Projection System. See SRG. ASRG (using RGB) is very similar to DMA (Defense Mapping Agency) ADRG (ARC Digitized Raster Graphic). ADRG files can be imported into ArcInfo with the ADRGGRID command. The ASRG (using RGB) can be converted with the ADRGGRID command if it is in a true DMA ADRG format. The ASRG permits color codes, which the ADRGGRID command does not handle.