Arrangement for recording clock run-in codewords at the beginning of a track on a magnetic record carrier

Arrangement for recording a digital signal in tracks on a magnetic record carrier, said tracks running parallel with each other over said record carrier and at an angle relative to the longitudinal axis of said record carrier, while the digital signal is recorded in a first track part of the tracks, said arrangement comprising an input terminal for receiving the digital signal, and recording means for recording the digital signal in the first track part, characterized in that the arrangement further comprises codeword generating means for generating n-bit first codewords, and in that the recording means is arranged for recording the n-bit first codewords in second track parts which form the beginning of the tracks, in that the first codewords each contain a sequence of, successively, p bits having a first binary value, q bits having a second binary value being the inverse binary value of the first binary value, and r bits having the first binary value, and in that p, q and r are odd integers for which the following holds p.gtoreq.3, q.gtoreq.3, and r.gtoreq.3.