Area51_Hacker2 -- Thanks for the comments, and yes it runs on HBC.

Vash -- I know that you, Virus and DSPet should have the algorithm since you all have developed great tools that change the content of RVFOREST.DAT without any corrupted file issues. Nevertheless, I would like to learn how to extract such an information from the game itself. It is quite amazing to see that this gamesave file has quite a number of checksums for various sections of the file (e.g. like two for each character's segment in the file).

Cheers.