Does it mean the decoder couldn't recognize the signal as videocrypt2 (no "please insert card" message)?
There are 2 videos on youtube related to this topic. One from a person who catched a videocrypt decoder glitch on TeleCinco:
and an another video from a swiss guy named 625line:
We could ask them if they could capture the vbi from the tape to make it clear was it really a videocrypt encryption or not.
According to @
Adam792 it is clearly to see the videocrypt remants at the edge of the picture on the first video.
I have mentioned in the videocrypt topic before here in Budapest an MMDS system was operating for 5 years using the dalvi encryption system. The encrypted image looked exactly the same as videocrypt, but the (cardless) CA system was totally different.