Mr Storan objected to the video being shown and said it was “manifestly inadmissible”.
Judge Andrew Cody allowed the video to be shown after journalists and members of the public left the courtroom.
Giving his decision, the judge said the video was recovered from a co-accused’s phone and appeared to show four men dressed in black and wearing balaclavas in front of a tricolour.
He said two of the people remove their balaclavas at the end of the video and another person has the balaclava loose around his eyes.
The judge said he was satisfied that gardai’s opinion that Mr Peckauskas is one of the four men was well-founded.