Arc help

[KaktoR]

I don't know what delta is.

For mfbt4 see this: https://documentation.help/7-Zip/method.htm#MatchFinder

For unpack your bin file use the x command from arc.exe

Example: arc.exe x data.bin -dp.\unpacked

I suggest you to read arc.exe help for more commands.

Edit:

FreeArc uses LZMA, prediction by partial matching, TrueAudio, Tornado and GRzip algorithms with automatic switching by file type. Additionally, it uses filters to further improve compression, including REP (finds repetitions at separations up to 1gb), DICT (dictionary replacements for text), DELTA (improves compression of tables in binary data), BCJ (executables preproccesor) and LZP (removes repetitions in text).

[biotec2k8]

Yes

I have now create a Bat who extract my Test.bin. OK

What are the most popular external packers for Arc and how do I use them effectively?

I would really like to learn that and have been dealing with it for a few days, but somehow I still lack a certain kick