If you are setting up modern arcade emulators like MAME, FinalBurn Neo, or RetroArch, you will eventually encounter missing file errors. Two specific files frequently trip up retro gaming enthusiasts: and qsound-hle.zip . These files are critical components required to properly emulate the legendary audio hardware found in Capcom's classic arcade systems. What are These Files?
The file dl-1425.bin and the archive qsound-hle.zip (often referred to as qsound_hle.zip ) are essential components for emulating Capcom arcade games that utilize the audio system. If you are seeing a "Required files are missing" error when trying to play games like Street Fighter Alpha , X-Men vs. Street Fighter , or Alien vs. Predator , it is almost certainly because your emulator cannot find this specific sound chip ROM. What is dl-1425.bin?
I’m trying to set up a Capcom QSound-based arcade game (e.g., Street Fighter III , Marvel vs. Capcom , Dungeons & Dragons: Shadow over Mystara ), and I’m running into issues with the sound BIOS / HLE files. dl-1425.bin qsound-hle.zip
RetroArch handles arcade files dynamically through its cores (like FinalBurn Neo or MAME Current ).
It is worth emphasizing that distributing or downloading copyrighted arcade ROMs without authorization infringes on the intellectual property rights of the original developers and publishers. If you are setting up modern arcade emulators
Super Street Fighter II , Street Fighter Alpha 1, 2, and 3 , Street Fighter III: 3rd Strike .
If you are encountering this issue, you are likely using a modern version of MAME (version 0.186 or newer) alongside an outdated arcade ROM set. What are These Files
You will rarely see dl-1425.bin mentioned without qsound-hle.zip , and vice versa. Here is the hierarchy:
The file is the ROM dump of the internal DSP (Digital Signal Processor) code used within the Capcom QSound chip. This chip was responsible for the stereo sound effects and music in many 1990s Capcom arcade games.
Starting with MAME 0.186, the official MAME development team replaced qsound.bin with dl-1425.bin . This change was not backward compatible: older ROM sets and BIOS configurations that still expected qsound.bin would suddenly stop working after an update. Users who had previously functional Capcom CPS-2 games began encountering error messages like: