MAME 0.134u4 is an incremental update ("update 4") for the 0.134 release cycle, dating back to . If you are looking at this specific version today, you are likely either a retro-computing enthusiast, a developer researching historical emulator builds, or someone trying to figure out why a specific game won't load.
with the official 0.134u4 DAT file to verify your set. If you have a newer set, you can use the Rebuilder function to roll back ROMs to this specific version. Usage on Ports: This version is the base for MAME4droid Reloaded new release mame 0134u4 rom work