YouTube issues

A question for anyone here that has a YouTube account and has ever uploaded Michigan sports to it.  Are any of your videos suddenly being blocked or written up as matching third party content? 

My YouTube account is currently in shambles but it's somehow still standing.  Of my 402 videos, over 200 of them are now currently blocked world wide.  These videos include all sorts of classic football victories going all the way back to the 1970's, some basketball vids with the Fab Five and the majority of my player tributes.  

The same common theme on every video that is blocked globally is thanks to audio visual content administered by ZEFR.  I don't even know what the hell ZEFR is or what it stands for.  

What's most puzzling is that there is no pattern to any of the vids that were marked up.  Some basketball vids are blocked, others are fine.  Part 1 of the 2010 UConn FB game is blocked but part 2 is fine.  Even silent coaches film from the 1970 MSU football game is blocked by ZEFR despite the fact that it never aired on TV!!! 

Is anyone else having this problem?  I'm trying to think of the next step to take because I don't want my account removed altogether.  I've put 5 years into it and I'd rather not stop doing one of my favorite hobbies.