If you are setting up frontends like LaunchBox or RetroArch and encounter this error, it is almost always caused by a mismatch between your MAME executable version and your peripheral BIOS files.
The file is a critical ROM file for the QSound audio processor, used in many Capcom arcade games like Street Fighter II . In MAME, it is part of the qsound_hle.zip or qsound.zip device.
If you are receiving a "Required Files are Missing" error in MAME, follow these steps to resolve it: mame dl1425bin top
Save the game zip archive. The game will now boot independently without searching for an external parent BIOS tree. Verifying the Fix via Command Line
Once you have the .zip file (e.g., dl1425.zip ) in your roms folder, verify it isn't corrupt. If you are setting up frontends like LaunchBox
Because this file is proprietary hardware code, it isn't packaged with the emulator itself to avoid legal issues. Gamers often find themselves on a digital scavenger hunt across forums and archive sites like LaunchBox Community to find the correct qsound_hle.zip containing this specific 8KB file. Victory at the Top
In recent MAME builds, the "feature" of using HLE (which requires this bin) is the default because Low-Level Emulation (LLE) is extremely resource-intensive. LaunchBox Community Forums MAME Configuration Feature (Developer Context) If you are receiving a "Required Files are
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The file is a critical internal audio chip firmware required by the Multiple Arcade Machine Emulator ( MAME ) to emulate Capcom’s famous QSound audio hardware . Without this specific binary file, iconic games like Street Fighter Alpha , X-Men vs. Street Fighter , Marvel vs. Capcom , and Darkstalkers will refuse to boot, throwing an explicit dl-1425.bin (qsound_hle) NOT FOUND error message.