Abstract: A method of testing the position of an edit point between an edited magne tape packed in a cassette and a leader spliced ahead of the recording or a trailer spliced after the recording, includes determination of a distance of the edit point from a cue tone situated, for example, at least before the beginning of the recording, or from the end of the recording and generating first and second output signals commensurate with an optical measurement of the edit point and an inductive measurement of the recorded cue tone. In dependence of the position of the recorded cue tone behind the leader or ahead of the trailer as viewed in tape travel direction, a time difference, such as, between the ascending flank of the second output signal and the descending flank of the first output signal, is determined. The determined time difference is then compared with upper and lower limits which define a tolerance range for the position of the edit point before or behind the recorded cue tone.