Nintendo DS Hacking Wiki

midi2sseq and sseq2midi are programs for converting .sseq files to and from standard MIDI format for easy editing and ripping. Their home page is here:


Just drag an .sseq file to sseq2midi and it will create a MIDI file. Likewise, you can drag a MIDI file to midi2sseq to create an sseq file for use in a DS ROM.


The programs do not convert the files. Instead, they crash. Very annoying!

Incompatibility Notes[]

According to the main site, Jump/Call/Loop events in the original SSEQ files are lost when they are converted into MIDI files.

Furthermore, some MIDI events (i.e. Aftertouch) cannot be implemented in SSEQ file.