File Extension Library


.404 File Extension

  • Developer by: FMJ-Software
  • Category: Audio and sound Files

What are .404 files and how to open them?

Can't open .404 file? Are you wondering what it contains? On our site we will explain to you what this file is, what it is used for and what software opens the .404 file.

What is a .404 file extension?

.404 file extension is created by FMJ-Software. .404 has been classified as Audio and sound Files.

.404 is Muon DS404 bank

The 404 file extension is used for a 16-bits mono sound files, which contains loops, names, articulation, sample start & end offsets or multiple filter types.

Muon DS404 was computer program for composing music.

.404 file format is deprecated and this file format is no longer supported.

Currently, .404 file type is not actively used and is obsolete. This usually happens with system files in older operating systems, files from long-discontinued software, or with previous versions of some file types (documents, projects, images, etc.) that were replaced in later versions of the original programs.


How to open:

Use Awave Studio to work with Muon DS404 sounds.

How to convert:

Awave Studio is able to export *.404 files to other formats.

How to fix problems with .404 files

  1. You need to update the application that you normally use to open .404 files. Only the latest version of the software supports the current .404 file format
  2. You need to check the .404 file for viruses. To do this, you need to scan it with a popular antivirus (Norton, Nod32, Kaspersky, Dr.Web, etc.)