(1) The provisions of this Act concerning the term of protection under section 82 also apply to performances fixed on video or audio recording mediums before 1 July 1990 if, on 1 January 1991, a period of 50 years had not yet expired since the video or audio recording was released. If the video or audio recording was not released within this period, the period is to be calculated from the time of the performance. Protection under this Act on no account extends beyond 50 years after the release of the video or audio recording or, if the video or audio recording was not released, 50 years after the performance.
(2) Where a right of use in a performance was granted or transferred to another before 1 July 1990, then, in cases of doubt, the grant or transfer also extends to the period by which the term of protection was extended.
(3) The provisions of section 137 (3) and (4) apply accordingly.