[peteforde]

It's very strange to have worked on an undocumented file format parser all night before checking HN before I sleep and seeing this.

In my case, I am trying to unpack MIDI files that have been packaged in a proprietary format by a company called ToonTrack.

They have two product lines: expensive VST instruments and MIDI files designed to be played on those instruments. It's an open secret that you don't need the expensive VST instruments, if you're willing to navigate a somewhat tortured folder hierarchy.

Well, for this new instrument, they thought that they'd be clever and bundle their MIDI packs so that you have to buy the expensive instrument to play it. Also: no refunds.

You can see where this is going...

[peteforde]

Just in case anyone sees this and finds themselves curious, I actually just shipped the fix: https://ezkeys.kabaragoya.com/