| 摘要 |
A record medium for use in the reproduction of picture information in the form of an elongated strip of recording material, such as photographic film, on which four sequences of mutually adjacent frames are disposed longitudinally in parallel relationship, each sequence representing a segment of picture information. Designating the lateral positions of the sequences across the film in ascending order from one to four, the frames of the first and third sequences are oriented for reading of their picture information with film motion in one longitudinal direction, and the frames of the second and fourth sequences are oriented for reproduction as the film is advanced in the opposite direction. In a preferred embodiment, the film contains two color programs, with one of the first and third sequences of frames containing monochrome representations of the luminance information of color pictures, and the other containing monochrome representations of the chrominance information of corresponding color pictures. Similarly, the second and fourth sequences of frames contain the luminance and chrominance information of a second color program. The film is packaged in a flip-over type cassette to facilitate playback of the film in either of the two longitudinal directions.
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