Hi,
so you want to show the videos first and afterwards ask questions to them?
Otherwise it would be sufficient to have groups with video and following question with the same randomization name.
Well, add a hidden question of type equation to each video group , like "order1", "order2", ...
In the question text of "order1", "order2" you only have
{Q1.gseq} with Q1 the question of the first video,
{Q2.gseq} with Q2 the question of the second video
...
At the end you see for each video the order.
Remember, groups start counting at "0", and all groups of the survey are taken into account.
Joffm