There's one really weird thing. I mentioned in this post that I used the editor to change the color of a Kuruma in my garage to the unique color of the Kuruma from the beginning of the game (since I lost the original one twice due to a weird game glitch). Then I decided to use Notepad++ to compare both files (the one before the edit and the one saved after the edit) in order to make sure that the editor changed nothing else than just the color of the car. I know that when I open a GTA3 save with Notepad++ I would get nothing but a huge load of symbols that I don't understand but my thoughts were that if only the color of a car was changed, the difference between the two files would be just a few symbols. Well the Notepad++ compare plugin said that the two files match.
When I saw this message I instantly thought that I'm making a mistake. I loaded the original file and the edited file after that in order to make sure that the changes really applied. It turned out that the new save is really updated, the color of the Kuruma was really changed. So I loaded both save files again in Notepad++ and I still get the message that they are the same.
This is most definately a mistake of Notepad++ editor, right?
EDIT: Definitely a Notepad++ mistake. I checked the md5 hash of both files and it's really different
It seems that Notepad++ can represent different symbols the same... it tries to encode them in UTF8 after all. I should check differences with a HEX editor rather than a text editor.