.ER File Extension

Newer Super Mario Bros. Wii Audio

Developer Newer Team
4.3  |  4 Votes

What is an ER file?

An ER file is an audio file used by Newer Super Mario Bros. Wii, a fan-made sequel to Nintendo's New Super Mario Bros. Wii. It contains a sound effect or music played in the game. ER files are similar to the .BRSTM audio files used by official Wii games.

More Information

Screenshot of a .er file in VideoLAN VLC media player
ER file open in VideoLAN VLC media player

Gamers who have homebrew-enabled their Wii or use the Dolphin emulator can download and play Newer Super Mario Bros. Wii. When downloaded, the game arrives as a .ZIP archive. Decompressing this archive allows you to view the game's constituent files.

The game's Music subdirectory contains a series of ER files. These files are used to play in-game music and sound effects. Many of the ER files that contain music are named for the level in which they are used.

How to open an ER file

You can use BrawlBox (Windows) or VideoLAN VLC media player (multiplatform) to open ER files and listen to the audio they contain.

How to convert an ER file

BrawlBox and VideoLAN VLC media player can convert ER files to other audio formats. For example, VLC can convert ER files to the following formats:

  • .OGG - Ogg Vorbis Audio
  • .MP3 - MP3 Audio
  • .FLAC - Free Lossless Audio Codec
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Programs that open ER files

Verified by FileInfo.com

The FileInfo.com team has independently researched the Newer Super Mario Bros. Wii Audio file format and Mac, Windows, and Linux apps listed on this page. Our goal is 100% accuracy and we only publish information about file types that we have verified.

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