Search the parent software’s documentation for “DT30” and “G4” – not “CPK.” The file is almost certainly a sidecar resource.
Are you trying to install the original game, a specific patch (e.g., Data Pack 4.0), or a custom patch? Knowing this can help me identify if the file is corrupted or just slow to install. Dt30-g4.cpk
file Dt30-g4.cpk
Community-developed, open-source utilities specifically for modding games that use the CPK format. a specific patch (e.g.