Breakdown (Xbox) bgm.stw/sth

Extraction and unpacking of game archives and compression, encryption, obfuscation, decoding of unknown files
Game Ripper
Posts: 123
Joined: Sat Sep 02, 2017 12:56 pm

Breakdown (Xbox) bgm.stw/sth

Post by Game Ripper »

Good day everyone, once again I find myself (slightly) stuck in VGM ripping procedure and woudn't mind some help from you folks. The general task is to unpack an audio bank and preferably make some use of a companion index (?) file.

Here're samples: the beginning and ending of a huge sound archive (bgm.stw), aforementioned index file (namely bgm.sth) and a snippet from the latter (sort of tracklist I tried to make). As you can see there should be 230 streams contained in bgm.stw but only 224 wave tracks (taking 462 MB out of 465) are in plain sight so that simple scanners for typical formats won't do. I really hope there's a way to unpack all contents of said bigfile and I'd welcome any solution you can come up with even if those remaining 6 tracks will be unplayable/headerless.

So is it possible to create some BMS for extraction of bgm.stw with automatic renaming of streams (using bgm.sth obviously)? I'll be sincerely grateful to anyone who's able to help me out!
Best regards!
Mygoshi
Posts: 654
Joined: Mon Oct 27, 2014 1:49 pm

Re: Breakdown (Xbox) bgm.stw/sth

Post by Mygoshi »

Oh, I think I remember you having a different username. Sorry for not answering your question though.
Last edited by Mygoshi on Wed Feb 17, 2021 6:04 pm, edited 2 times in total.
aluigi
Site Admin
Posts: 12984
Joined: Wed Jul 30, 2014 9:32 pm

Re: Breakdown (Xbox) bgm.stw/sth

Post by aluigi »

Game Ripper
Posts: 123
Joined: Sat Sep 02, 2017 12:56 pm

Re: Breakdown (Xbox) bgm.stw/sth

Post by Game Ripper »

@Mygoshi: Of course not, why would he even need a pseudonym? I'm JBTND from FFS Forums or Ultrafighter from HCS Forum if you're curious. Granted I try and come up with a completely different username any time I register somewhere but it doesn't mean I'm hiding anything...

@Luigi: Thanks! I've already tested most extracted streams and haven't stumbled upon any headerless ones yet. Great work as usual!
Cheers!