LostVagueness

That's a plus!
That said, I know it doesn't help now, but there are a couple of posts on the forum here that cover how to index/catalog your files.  It may be worth checking those out.
Also, if it's TV shows/movies/etc, there are software that can help make inventorying them easier. 

I'm sorry to hear about the drive failure!
And yeah, any drives that were only on the drive that failed would no longer show up in the pool.