What format is the compressed imagery in?
Compressed imagery is in the Enhanced Compressed Wavelet (ECW) open standard image format. Using the ER Mapper ECW imagery plug-ins, you can use Photoshop, Microsoft Office products, ER Mapper, ER Viewer, PCI, Intergraph, Erdas, and other image processing products, as well as GIS applications such as ArcView and ArcInfo.