(released around late 2010/early 2011) is widely considered the last "non-merged" friendly version before major changes to CHD (Compressed Hunks of Data) handling and internal ROM auditing. Here’s why it remains a favorite:

If you want to fine-tune your emulation setup, tell me you are planning to emulate these games on and which emulator you intend to use. I can provide the exact folder structures and optimal video settings for your hardware. Share public link

, which checks the ROMs against the 0.139u1 internal database to ensure no files are missing or corrupted. Setup for MAME4droid Download the ROMs : Ensure they remain in format; do not unzip individual game files. Transfer Path : On Android 11+, place your ROMs in

Look for the MAME 0.139 Rom Collection by Ghostware , which is a complete, verified directory of roms specifically for this version.