Terms of use of the Sign Bank, which can optionally be used in conjunction with SignStream® 3:
The Global Sign Bank — and all SignStream® data files and associated video files distributed by the ASLLRP — can be used only for research and education purposes, but cannot be redistributed without permission.  Commercial use, without explicit permission, is not allowed, nor are any patents and copyrights based on this material.  By downloading Sign Bank materials, you agree to abide by those terms.