MAME Languages.ini v0.149u1 is released. It supports file for MameUI, which attempts to catalog all of the MAME sets based on the language used by the game.

MAME Languages.ini v0.149u1 Changelog:
0.28 0.149u1 26/07/2013: Added 0.149u1 sets.

Download: MAME Languages.ini v0.149u1
Source: Here