The data are provided in 33 contiguous tiles that cover 50 degrees of latitude by 40 degrees of longitude. The exception is Antarctica where coverage measures 60 degrees of latitude by 30 degrees of longitude.
Delivery takes about a week and half.
Five CD-ROM's are needed for coverage of the entire world. However, for some unknown reason, the downloaded DEM's do not open properly in Photoshop. The Raw Options dialog appears. Windows users must copy the DEM to their hard drive and rename it with a .raw extension. After awhile a high contrast image opens showing water as white and land as dark gray.