If this is outdated i dont care.

There's an OLD document on my OLD waa3 site about ripping Escape From Monkey Island files using a combination of Multiripper, LB83Make (mine :D ) and SCUMM Revisited.

Here's a link to the doc:
http://waa.mixnmojo.com/mi4.shtml)

Here's a link to LB83Make (the link on that doc doesnt work anymore)
http://baxpace.com/tools/lb83make.zip)

Basically the tutorial involves ripping the files with multiripper, compiling a bundle with lb83make, then exploring the bundle with ScummRev.

Maybe someone's already solved the problem - i've been paying so little attention i dont know. But this is my way of doing it :)