AS/ZC (Zip Chunker)
From Just Solve the File Format Problem
AS/ZC is what we're calling the container format used for file fragments, by the arbitrary-format mode of several file splitting utilities developed by Scott Jibben / Jibben Software. Specifically:
- Zip Chunker (ZC), v2.00+
- Archive Sizer, renamed to Zip Chunker Pro (ZCP) as of v3.00
- LHA Chunker
The filename extension was changed from .AS to .ZC in ZC v3.01 and ZCP v3.01.
Note that the flagship feature of these utilities is splitting standard archive formats, in which case the AS/ZC format is not used.
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Identification
AS/ZC files start with ASCII "AS", followed by bytes af 10. The next two bytes are a format version number, and are probably always 64 00.
Specifications
- Some format details are given in the documentation file included with the software. Search for "This is the format".
Software
For DOS, except as noted.
- Zip Chunker
- Zip Chunker v1.02 (for reference; does not support AS/ZC)
- Zip Chunker v2.01
- Zip Chunker v3.01 - DOS, OS/2, Windows console
- Archive Sizer / Zip Chunker Pro
- Archive Sizer v1.00
- Archive Sizer v2.01
- Zip Chunker Pro v3.01 - DOS, OS/2, Windows console
- LHA Chunker
Sample files
- Hornet Underground Volume 2 → MAGS/1996/SYNMAG1*.ZIP → *.AS
