MAME Languages.ini v0.148 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 v0.148 Changelog:
* 0.18 0.147u4 21/12/2012: End of the world? No, two error fixed (english > japanese).
* 0.19 0.148 12/01/2013: Added sets of the 0.148.

Download: MAME Languages.ini v0.148
Source: Here