thanks, dude :D
Also ( sorry to bother you again ), were you compressing your file using the default compression settings? If so, try using the "best" compression method(it'll reduce the final size by a lot ;) ) And if you're using 7-zip, you can also choose "deflate" compression for wide range compatibility, and choose "Ultra" compression level to make the size even smaller!
It's meaningful for people like me who is lacking internet connection.
EDIT : I just realized that the .pck file is large in size. So I'm sure that you've nicely compressed the game. Sorry for that, and thank you :)