By adopting the detected capstan phase as a phase control information, the time required for the mode of the system to be changed from the stop mode to the reproducing mode or from the searching mode to {HEAD ~ the reproducing mode}, namely while the mode of the system is changed from {TAIL ~ the speed variation mode} to a normal speed mode is reduced, so that it is possible to obtain a more stable reproducing operation at a high speed 
By adopting the detected capstan phase as a phase control information , the time required for the mode of the system to be changed from the stop mode to the reproducing mode or from the searching mode to { HEAD ~ the reproducing mode } , namely while the mode of the system is changed from { TAIL ~ the speed variation mode } to a normal speed mode is reduced , so that it is possible to obtain a more stable reproducing operation at a high speed
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