i know that the mabi packager tool actually does not compress files back into the actual .pack file cause i could not get it to work without a ijl patch. keep in mind i didnt have the data folder selected in the options and i deleted all 3 data folder the program and the upload.inf and it didnt work mabi failed and crashed. im checking online for programs that may give some kind of insight as to how dev/nx pack there files. im guessing with a java program or something. idk if u got any info that can help me find out more then drop me a linǝ.