Available choices: Virtual Raster, GeoTIFF, National Imagery Transmission Format, Erdas Imagine Images (.img), ELAS, In Memory Raster, MS Windows Device Independent Bitmap, PCIDSK Database File, ILWIS Raster Map, SGI Image File Format 1.0, Leveller heightfield, Terragen heightfield, HDF4 Dataset, ERMapper .ers Labelled, Raster Matrix Format, Idrisi Raster A.1, Intergraph Raster, Golden Software Binary Grid (.grd), Portable Pixmap Format (netpbm), ENVI .hdr Labelled, ESRI .hdr Labelled, PCI .aux Labelled, Vexcel MFF Raster, Vexcel MFF2 (HKV) Raster, VTP .bt (Binary Terrain) 1.3 Format, Image Data and Analysis, NOAA Vertical Datum .GTX, NTv2 Datum Grid Shift, ARC Digitized Raster Graphics, SAGA GIS Binary Grid (.sdat)