Freezing on home vhs recordings

Anyone help with this problem?
When recording home vhs tapes,there is a split second freezing upon playback. This happens at exactly one minute intervals at various places on the disc. This is recording via the front a.v.sockets.
Is this macrovision trying to kick in?..Its happened on different brands of discs. Is this a bug with some firmware editions.? :confused: december bought machineā€¦uk.lvw 5005. Thanks in advance