Yea I thought it's a lot too (that's why I titled this thread accordingly) but I didn't make the model; I'm only importing it. Thanks for the tips!

And yes, it does seem like 2GB is the max in MED.

EDIT: I'm not sure why, but it seems like either in the export key frames or in the import process that many additional frames were added at the end of each animation set. In excess of maybe 100 frames were added to each animation set I imported. Not too sure why though!