thanks for the comments
I think the FMV I used for X was just the ending video, but I downloaded it as ending part 1 and ending part 2, so I counted it as two different vids. I never actually finished FFX so I'm not sure whether they were two different FMVs or not.
And I would love to know where to get some more clips - I have searched all over the internet for some but all I managed was to find a bunch of FFVIII ones, and everyone I've asked has only suggested illegal ways to get them.