Esso Production Research Company has found that video tape is an effective means of conducting technical training and transferring technology. Use of video tape reduces the cost of conducting technical schools. Engineers and scientists using video tape information seem to retain it about as well as they do when they get it by other means (live schools, technical reports). Limited results indicate that video-taped technical reports convey information about as well as do written technical reports. Some users prefer audio-tape cassettes and recorders for automatic audio synchronization with 35 mm slides. The general conclusion is that video tape is one more communications medium, but a good one, at the disposal of people concerned with technical training or technology transfer.