Each mp3 file consists of a concatenation of 3 spoken lines from 3 different songs. It is not relevant what songs these are, or what the words are. All that matters is whether the segment is:
0: The first vocal in the song/track
2: The last vocal in the track
1: From somewhere in the middle
As the title (a reference to a spoken line in the song New Math by Tom Lehrer: "...but don't panic, base eight is just like base ten, really...if you're missing two fingers!") suggests, the correct interpretation is to treat each file as a 3-digit base 3 number (with the digits assigned as above). These then conveniently produce numbers 0-26, which can be converted into letters via A=1 to spell EAGLEWOOD, the answer.
For the curious, the songs are:
Little Red Riding Hood, The Big Bopper (0)
Jungle Love, The Time (1)
Helter Skelter, The Beatles (2)
We Will All Go Together When We Go, Tom Lehrer (0)
Dragula, Rob Zombie (0)
Dead Man's Curve, Jan and Dean (1)
Taxman, The Beatles (0)
Get Over It, The Eagles (2)
Pretty Fly, The Offspring (1)
Jack and Diane, John Mellencamp (1)
Five to One, The Doors (1)
It Wasn't Me, Shaggy (0)
Tubthumping, Chumbawumba (0)
White Wedding, Billy Idol (1)
Barbie Girl, Aqua (2)
Tequila, The Champs (2)
The End, The Doors (1)
Get Back, The Beatles (2)
99 Red Balloons, Nena (1)
I Am the Walrus, The Beatles (2)
It's Raining Men, The Weathergirls (0)
Yellow Submarine, The Beatles (1)
Another Brick in the Wall (Part 2), Pink Floyd (2)
Baby Got Back, Sir Mix-a-lot (0)
I Want You to Want Me, Cheap Trick (0)
Panama, Van Halen (1)
Theme from Shaft, Isaac Hayes (1)
2006 MIT Mystery Hunt