I've started playing a few hours ago, and I thought Namine sounded an awful lot like Brittany Snow from when she voiced original KH2... turns out it is her.  But didn't Meaghan Martin voice the FM scenes with Namine in them?

I think they had her redo all the lines in the game. Could be wrong.

Edited December 2, 201410 yr by Kaweebo

In other words, it was done for continuity (reasons).

I've started playing a few hours ago, and I thought Namine sounded an awful lot like Brittany Snow from when she voiced original KH2... turns out it is her.  But didn't Meaghan Martin voice the FM scenes with Namine in them?

Maybe in the original FM, there where only Japanese voices for the new scenes, and even then only when viewed in theater mode with a memory card that had Re:CoM clear data on it. It's possible that they kept Brittany's lines and only had Meaghan work on the new ones. I literally just got mine an hour ago and haven't even started yet.