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+--- Thread: How are large psdzdata files compressed so efficiently? (/showthread.php?tid=9456)
How are large psdzdata files compressed so efficiently? - armenh7 - 01-04-2026
I was curious how the files are compressed to get such a great difference between the actual file size vs the archives that are shared. For example, the psdzdata lite is 8gb unpacked but 1.8gb packed. I also noticed the file format is in zip and not 7z so I would guess it's not using LZMA2. I am trying to make "mini" psdzdatas that contain files I need for flashing units that take long (like NBTEVO) and would like to make the files take less storage.
This question was mainly intended for Hashtagmaster but his inbox is full so posting here.
Thanks in advance.
RE: How are large psdzdata files compressed so efficiently? - JSC - 01-05-2026
https://www.bimmerscene.com/showthread.php?tid=9142&highlight=psdzextractor