The training industry is witnessing a transition from analog video stored on tape or videodisc to digital video stored on computer disks or CD-ROM. New compression techniques are making digital video technology more feasible for instructional applications such as interactive training, desktop video editing, and video conferencing.

There are several advantages to storing video in digital form. Digital video can be copied and reproduced without any loss of quality; whereas, each time an analog format is duplicated, the quality decreases and the noise level (imperfections) increases. In addition, digital formats offer the potential for increased manipulation; the images can be repositioned, resized, and recolored by a computer. Video in digital formats is also easier to transmit over computer networks.

This presentation will provide an overview of various digitizing and compression techniques for video. In addition, digital technologies such as QuickTime, Video For Windows, and Digital Video Interactive will be outlined. Demonstrations of various compression techniques will be included, and guidelines will be provided for selecting and implementing digital video in training applications.

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Susan Varnadoe