My VCR (JVC - HM-DR10000EU) has started exhibiting concerning behaviour. On some tapes the image rolls down to up, the segments between the frames have flashing stipes of what looks to be continuation of image. Upon pausing the image is stabilised, the same on reindng and playback, but when resuming he playback the video plays normally for few seconds then the image freezes, while the tape plays back, the timer runs and the audio is audible. Tutning Digital TBC/NR only causes the image to roll slower.

Is it tape damage, or is my VCR becoming toast?
Running the tapes on a rewind deck shows stable image.