Put the updated qsound_hle.zip or qsound.zip into your MAME /roms folder. You do not need to unzip it. Restart MAME: Launch your game again. Summary Checklist for Fix Action Required qsound.zip Obsolete/Older MAME Replace with newer version containing dl-1425.bin . qsound_hle.zip Recommended Use this in your ROMs folder for 0.201+ MAME. dl-1425.bin Required File Must be present inside qsound.zip or qsound_hle.zip . Alternative Temporary Fix
The dl-1425.bin file is the for Capcom's proprietary audio hardware, known as QSound . Developed in the early 1990s, QSound was a revolutionary spatial 3D audio technology that gave arcade games an immersive, multi-dimensional soundstage using standard stereo speakers.
Before you begin, it's vital to understand that updating system firmware, especially on older hardware, carries inherent risks. A failed BIOS update can render your computer or server inoperable, often requiring professional repair.
sha256sum dl_1425.bin binwalk -e dl_1425.bin openssl dgst -sha256 -verify pubkey.pem -signature dl_1425.sig dl_1425.bin dl 1425bin upd
The primary BIOS update file for the Dell PowerEdge SC1425 server is .
This is the classic symptom of updating your MAME emulator without updating your ROM set. The error appears immediately after the emulator update because the underlying requirements for the QSound BIOS changed. Rolling back to your older version of MAME (e.g., 0.185) would make the error disappear, but you would lose the benefits of the newer emulator.
The USB drive is not formatted correctly (use FAT32) or the file is in the wrong directory. Put the updated qsound_hle
Give you instructions on where to check your for proper integration.
Copy qsound.zip into /home/pi/RetroPie/roms/arcade/ or the /roms/fba/ folder. Testing and Verification
Open the .zip file. It should contain a file named exactly dl-1425.bin . Summary Checklist for Fix Action Required qsound
After reboot:
file contains the internal DSP (Digital Signal Processor) program code required for high-level emulation (HLE) of the QSound hardware. Without it, games built on the Capcom Play System 2 (CPS2) and certain titles will typically fail to launch or play without sound. LaunchBox Community Forums Common games requiring this file include: Street Fighter II Alien vs. Predator Darkstalkers Marvel vs. Capcom LaunchBox Community Forums Common Issues and "Missing" Errors Users frequently encounter a dl-1425.bin NOT FOUND
Drop qsound_hle.zip right back into your emulator's primary roms/ directory alongside the original. Method 2: Applying MAME Update Sets (Official Way)