You can use this custom diskspan compressor to get 8xDVD5 (last disk is around 900mb).
Just make sure to move all language files you don't need to somewhere else outside game folder (this old batch only supports 1 language).
Look here for details about compression:
https://fileforums.com/showpost.php?...&postcount=699 (8xDVD5)
https://fileforums.com/showpost.php?...&postcount=754 (7xDVD5)
Use Setup.exe from post #1