However , for the retro-archaeologist, the low-latency gamer, or the owner of a vintage Windows XP arcade cabinet, MAME 0.134u4 represents the peak balance of features versus system requirements.
If you are trying to get running today, you cannot use a generic 0.134 ROM set. You need the u4 specific updates. Here is a breakdown of the major changes that required "ROM work" from the user: new release mame 0134u4 rom work