.ini Files Explanation

player.ini
Holds the settings that you use in the game, such as graphcis (resolution, detail bias sound level etc) as well as your PBs at all the original 11 tracks. Player.ini will actually hold all PBs of the tracks that show up in the Best Times menu in GPL, but if you change them, your PBs for tracks not appearing there any more will be lost unless you save a replay and use GPL Replay Analyzer to record them.

track.ini
Holds some track dimensions such as the starting grid and pit stall layout as well as some AI parameters. For instance dlong_speed will make the AI slower or faster.

record.ini
Simply holds the fastest lap recorded whether it's you or the AI or someone you raced against online. If you race as Graham Hill, the "real" Graham Hill AI will be listed as the same name.

driver.ini
Has specific parameters for the AI behaviour. It's there that Jim Clark and Graham Hill will be given better skills. The driver.ini and car graphics need to match by the way since the 19 AI cars have drivers' names on them etc.

gpl_ai.ini
Has AI parameters for the AI drivers in more general detail.

core.ini
Has graphics card, communications for online racing and force feedback parameters that the user (you) should edit for best gameplay.

app.ini
Records the last rasterizer you used, the last player that raced and a sound quality setting.

gp.ini and 67season.ini
Have the tracks included for the world championship mode and single race mode respectively.

(Author: Bob Simpson)