Rotary Recording Medium Having Different Video Signals Recorded on Mutually Adjacent Tracks and Reproducing Apparatus Therefor

1. A rotary recording medium which is playable on a reproducing apparatus having a reproducing element for reproducing signal from the rotary recording medium, said rotary recording medium comprising: a spiral track (T) made up of a plurality of consecutive track turns; first and second video signals alternately recorded on said plurality of track turns so that two mutually adjacent track turns have different video signals recorded thereon, said first video signal relating to a first program, said second video signal relating to a second program which is different from said first program; and first and second audio signals recorded on said plurality of track turns, said first audio signal being related to said first program, said second audio signal being related to said second program; said first program being reproduced responsive to said reproducing element scanning over (2n+1)-th track turns with a kick at each of kicking position (V3, V11, V19, . . . ) where said reproducing element is kicked between (2n+1)-th and (2n+3)-th track turns, where n+0, 1,2, . . . ; said second program being reproduced responsive to said reproducing element scanning over (2n+2)-th track turns with a kick at each of a plurality of kicking positions (V7, V15, V23, . . . ) where said reproducing element is kicked between (2n+2)-th and (2n+4)-th track turns; said kicking positions (V3, V7, V11, . . . ) being arranged along a radial line extending across at least a part of said rotary recording medium; a first continuous track portion including a kicking position which is constituted by portions of the (2n+1)-th and (2n+2)-th track turns which are consecutive track turns; a second continuous track portion including a kicking position which is constituted by portions of the (2n+2)-th and (2n+3)-th track turns, which are consecutive track turns; a third continuous track portion including a kicking position which is constituted by portions of the (2n+3)-th and (2n+4)-th track turns, which are consecutive track turns; said first and second continuous track portions containing said first audio signal having identical audio information so that a continuity of audio information related to said first program is maintained as said reproducing element is being kicked between said first and second continuous track portions; said second and third continuous track portions containing said second audio signal having identical audio information so that a continuity of audio information related to said second program is maintained as said reproducing elemnt is being kicked between said second and third continuous track portions.

2. The rotary recording medium in claim 1 in which said first audio signal contains audio information corresponding to each of said track turns which have said first video recorded over a first set of track segments, each of said first set of track segments having two consecutive track portion (i-j, j-k, k-l, l-m; . . . ), each portion of the two consecutive track portions amounting to the length of one track turn so that within each of the track segments, each portion of two consecutive track portions containing an identical first audio signal, said first identical audio signal being related to said first program, said first identical audio signal having a first audio discontinuous point located at the junction of the two consecutive track portions of the first set, each of said first audio discontinuous points being arranged along a radial line extending across at least a portion of said rotary recording medium which is different from the radial line along which said kicking positions are arranged, said second audio signal having audio information corresponding to each of said track turns with said second video signal recorded over a second set of track segments each of said second set of track segments having two consecutive track portions (j-k, k-l; l-m, m-n; . . . ), each portion of the two consecutive track portions amounting to the length of one track turn so that within each of the track segments, each portion of two consecutive track portions containing an identical second audio signal, said second identical audio signal being related to said second program, said second identical audio signal having a second audio discontinuous point located at the junction of the two consecutive track portions of the second set, each of said second audio discontinuous points being arranged along a radial line extending across at least a part of said rotary recoridng medium which is different from the radial line along which said kicking positions are arranged.

3. The rotary recording medium in claim 2 in which said first and second audio discontinuous points are arranged along the same radial line across at least a part of said rotary recording medium which is different from the line along which said kicking positions are arranged.

4. The rotary recording medium of claim 1 in which each of said plurality of track turns contains a plurality of video fields, and said rotary recording medium further having first and second reference signals (fp1, fp2) for tracking control, said reference signals being recorded between adjacent track turns over a segment corresponding to each track turn, said first and second reference signals being recorded alternatively with respect to each track turn, and a third reference signal (fp3) recorded on each track turn at a position which corresponds to a switchover position (V1, V5, V9, . . . ) where the recording of the reference signals switches over between said first and second reference signals, said switchover position being a position where a vertical synchronizing signal of the video signal is recorded.

5. A rotary recording medium playable on a reproducing apparatus equipped with a reproducing element for reproducing a plurality of video and audio signal which are recorded on said rotary recording medium, said rotary recording medium comprising: a spiral track (T) made up of a plurality of track turns; first and second video signals which are unrelated to each other in terms of program segmented respectively for two consecutive frame periods and recorded alternately with respect to each other along the spiral track, each segment of the first and second video signals occupying one full track turn so that each of the first and second video signals is discontinuous every two consecutive frame periods when reproduced by said reproducing element along said spiral track but is continuous in terms of program when reproduced so that said reproducing element shifts to an adjacent track turn after having tracked one of said one full track turns, said shift occurring a junction (V3, V7, V11, . . . ) where a segment of said first video signal couples to a segment of said second video signal; a first audio signal which is related to said first video signal in terms of program; and a second audio signal which is related to said second video signal in terms of program, both of said first and second audio signals being segmented to be continuous for four consecutive frame periods mnd recorded juxtaposedly and consecutively occupying first through third track turns (j-k, k-l, l-m) by overlapping each other on the second track turn (k-l), said first track turn starting at a position (j) which is slightly ahead of said junction on the spiral track in terms of tracking direction of said reproducing element, a first identical audio signal segment which is identical to a first portion of said first audio signal recorded on rhe first track turn (j-k), being recorded on the preceding track turn (i-j) so that said first identical audio signal segment and said first portion are juxtaposed; a second identical audio signal segment which is identical to a second portion of said first audio signal recorded on the second track turn (k-l), being recorded on the third track turn (l-m) so that said second identical audio signal segment and said second portion are juxtaposed; a third identical audio signal segment which is identical to a third portion of said second audio signal recorded on the first track turn (j-K), being recorded on the second turn (k-l) so that said third identical audio signal segment and said third portion are juxtaposed; a fourth identical audio signal segment which is identical to a fourth portion of said second audio signal recorded on the thrid track turn (l-m), being recorded on the track turn (m-n) which is subsequent to the third track turn so that said fourth identical audio signal segment and said fourth portion are juxtaposed.

6. The rotary recording medium of claim 5 in which each of said plurality of track turns contains a plurality of recorded video fields, and said rotary recording medium further has first and second reference signal (fp1, fp2) for tracking control recorded between adjacent track turns over a segment corresponding to each track turn, said first and second reference signals being recorded alternately with respect to each track turn, and a third reference signal (fp3) recorded on each track turn at a position which corresponds to a switchover position (V1, V5, V9, . . . ) where the recording of the reference signals switches over between said first and second reference signals, said switchover position being a position where a vertical synchronizing signal of the video signal is recorded.