: For simple listening without conversion, you can use the 2SF Decoder plugin for foobar2000 . mini2sf file format - ROM - Project Pokemon Forums
The most reliable way to get a high-quality MIDI file is to bypass the .mini2sf file and go directly to the source data within the game ROM using specialized software. 1. VGMTrans (Highly Recommended)
The is a specialized audio container for Nintendo DS music.