Abstract: A method and system of recording on a video signal recorder a serialized stream of pulse code modulated digital data bits. The video signal recorder has multiple record/playback heads and is of the type normally adapted to record video signals such as television signals under the control of synchronizing signals included in the video signals. Data frames having a predetermined number of data bits of the serialized stream of pulse code modulated digital data bits are successively applied at a given frequency to a data buffer. The frequency of the data bits of the data frames output from the data buffer is increased thereby compressing in time the data frames. Buffer zones of filler bits provide a predetermined period of time between successive data frames. Synchronizing signals are inserted in the buffer zones for controlling the timing of switching events between recording heads to occur within the predetermined period of time.