Newer version of g1l not supported?

[DeathChaos25]

One of the most recent Koei Tecmo games (Final Fantasy Dissidia NT on the PS4) uses the ever common .g1l file extension format, however it seems something is different about them as vgmstream is not working with them.

Some sample bgm files;
https://cdn.discordapp.com/attachments/377899265424621569/469186887106428928/bgm005.g1l
https://cdn.discordapp.com/attachments/377899265424621569/469186927073951755/bgm014.g1l
https://cdn.discordapp.com/attachments/377899265424621569/469186958309195776/bgm105.g1l

[bxaimc]

You need to extract the AT9 files (standard RIFF header) inside the G1Ls. They’re only containers and usually have more than one file inside but in some cases, you’ll find a G1L per song like in Dissidia NT. This is confusing considering you can find a variety of formats/file types inside of G1Ls (for example Hyrule Warriors on Nintendo Switch have .kns files “KTSS” magic and they’re all packed into a single G1L). Eventually, this may need to be cleaned up as decoding a G1L directly doesn’t seem to be the “correct” method.

[DeathChaos25]

Ah I see, you're correct, stripping the header and they're just regular at9 files.