Hi, So, an important issue to concern ourselves with in any collecting of video (or audio) data is what the federal government regulations calls "research with human subjects." Federal guidelines are the minimum collection to which institutions that receive any federal or state funding must conform. The quotes below are from the Code of Federal Regulations, Title 45 - Public Welfare, Part 46 - Protection of Human Subjects < http://www.hhs.gov/ohrp/humansubjects/guidance/45cfr46.htm >. "Research means a systematic investigation, including research development, testing and evaluation, designed to develop or contribute to generalizable knowledge. Activities which meet this definition constitute research for purposes of this policy, whether or not they are conducted or supported under a program which is considered research for other purposes. For example, some demonstration and service programs may include research activities." In other words: collecting video data in a classroom and using it to train other teachers can be considered "research" for the purposes of the regulation. Consequently, it may be necessary, depending on the Institutional Review Board (or its equivalent) at your institution, to obtain written permission from anyone whose image, voice, name, or other identifiable information can be ascertained from the video. Interpretations of the statutes are sometimes broad and sometimes narrow, depending on local, state, and institutional guidelines. The issue of protection of human subjects is an important one and is taken very seriously by the legal-eagles at most institutions. I suggest you consult with the chair of your institutional IRB to find out what sort of permissions (if any) they feel are appropriate before sharing video data. It turns out that for the video-case materials I am developing, I am required to obtain a liability release from each person in the room when the video data is captured in order to use the actual video on a nationally released, commercially available, product. Shandy On Saturday, February 12, 2005, at 10:00 AM, Derek wrote: