dt30_g4.cpk is a core data container file used by Konami's Pro Evolution Soccer (PES) series, specifically within titles like Technical Role File Format : It utilizes the CPK (CRI Middleware)
Search the parent software’s documentation for “DT30” and “G4” – not “CPK.” The file is almost certainly a sidecar resource. Dt30-g4.cpk
If you are looking for detailed "papers" or guides regarding how to manipulate or fix this file, you should look into: Modding Tutorials : Detailed guides on regarding "CPK File Manager" tools. Installation Fixes : Discussions on social media groups like PES Patch PC dt30_g4
