BackgroundMappings.ini

> What's BackgroundMapping.ini and how does it work?

It specified groups of Background movies that are used depending on the song's GENRE tag.

> What is the format of the file?

[GenreToSection] 
House=house
Bubblegum Dance=dance
Dance=dance 
 
[house] 
428_JumpBack.mpg= 
439_JumpBack1.mpg= 
439_JumpBack_1.mpg=

[dance]
431_JumpBack_1.mpg=
433_JumpBack.mpg=
629_JumpBack.mpg=

> Is there any way to pull animations from both BackgroundEffects/BGAnimations and RandomMovies during gameplay?

Yeah. They're both in the search order, so if you use the name "blah.avi", it should find it whether that is a BGAnimation or a