| Please note: the single letter media type designator is located at the beginning of the catalog number. | |
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| Explanations: | Media Type Designator Legend |
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V = Video (VHS) |
| DV = DVDs | |
| D = Compact Disk | |
| A = Audio | |
| C = Conference Tape (VHS) | |
| F = Film (16mm, Reel to Reel) | |
| S = FilmStrip (35mm) | |
| K = Slide Kit (35mm, Carousel) | |
| T = Training CD (Windows, Office97) | |