Tool to extract and repack files from Gran Turismo 4, Tourist Trophy & other builds based on these games (TT Demo, GTHD, etc).

To extract:

• GT4FS extract -r <GT4.VOL/TT.VOL>

To repack:

• GT4FS pack -r <extracted game folder> -g <game>, where game can be either:
  • GT4 - Gran Turismo 4 (any region)
  • GT4_ONLINE - Gran Turismo 4 Online Test Version (US/JP)
  • TT - Tourist Trophy (any region)
  • GTHD - Gran Turismo HD (PS3)
  • TT_DEMO - Tourist Trophy Demo
  • GT4_MX5_DEMO - Gran Turismo 4 Mazda Demo
  • GT4_FIRST_PREV - Gran Turismo 4 First Preview

IML2ISO is recommended, to build an iso off the game.

https://github.com/pez2k/gt2tools/tree/master/ISOLayerMerge, to merge two iso layers (i.e GT4).

Visual Studio 2019 & .NET Core Development Tools (.NET 5) required.