dl-1425.bin file is a critical BIOS component for Capcom technology, used in arcade systems like the CP System II (CPS2)
As a further precaution, make a copy of the zip and rename it qsound_hle.zip to ensure the emulator finds it. : Ensure the updated qsound.zip qsound_hle.zip is placed directly in your MAME folder, not inside individual game folders. Verification dl1425bin qsoundzip updated download
If you cannot find an updated download, many users use this workaround: MAME 0.185 qsound Errors - LaunchBox Community Forums dl-1425
In older versions of MAME, audio files were often included within individual game ZIPs. Newer versions of MAME (typically 0.185 and later) have moved these into a separate, shared "device" or "BIOS" file to reduce redundancy. LaunchBox Community Forums How to Fix "dl-1425.bin Not Found" Newer versions of MAME (typically 0
In older versions of MAME, the QSound audio driver was contained in a file named qsound.bin . However, starting around , developers updated the driver following a more accurate chip "decap" (microscopic analysis).
Last updated: October 2025. Always verify file hashes after downloading.
If you are still experiencing audio issues after installing the file, double-check that your emulator version matches the ROM set version you are downloading. Sometimes, using a "Non-Merged" ROM set is the easiest way to ensure all necessary BIOS files like Qsound are included automatically.
