See also Chunks by Name.
| Type | Subtype | Name | description |
|---|---|---|---|
| 0 | none | XXXX | unused areas in the file |
| 1 | none | DATA | stored file contents |
| present | attributes to restore as part of the file | ||
| 64 | TIME | advanced timestamp information for files | |
| 65 | FATR | FAT file system attributes | |
| 66 | MACF | Macintosh Finder info | |
| 67 | SECW | Win32 security information | |
| 68 | UNIX | UNIX file system attributes | |
| 69, 70 | 8D3N | “8.3”-style short name aliases | |
| 2 | various | INDX | directory of files stored |
| 3 | none | TOCN | chunk concordance |
| 4 | none | ENDX | end-of-archive marker |
| 5 | present | known data for transformation algorithms | |
| 64 | TREE | data to seed a frequency-based compressor | |
| 65 | DICT | data to seed a dictionary-based compressor | |
| 6 | various | AGNT | identifies creator and user-defined chunks |
| 7 | present | informational attributes associated with the file, but not restored with the file. | |
| 64 | CMNT | comments for the corresponding files | |
| 65 | icons for the corresponding files | ||
| 66 | unused | ||
| 67 | SIZE | file size information | |
| 8 | present | FORM | payload specification advanced transforms |
| 64 | COMP | compression algorithm | |
| 65 | CRYP | encryption algorithm | |
| 66 | — | fault-tolerance algorithm | |
| 9 | present | UPDP | updatable data parameters |
| 10 | present | META | |
| 11 | present | error detection or validation | |
| 64 | HASH | simple error detection for chunks or files | |
| 65 | SIGN | digital signatures for chunks or files | |
| 66, 67, 68 | KHSH | authentication for chunks or files | |
| 12 | present | RTFM | comment for the entire archive |
| 64 | always shown | ||
| 65 | general comment | ||
| 66 | copyright statement | ||
| 67 | URL | ||
| 13 | none | ICON | small bitmap to display |
| 14 | none | IDEN | identifies this file or part |
| 15 | = INDX | ROOT | suppliment to INDX: file source or destination |
| 16 | KEYD | key definition | |
| b## | description for each subtype... | ||
| 17 | — | DEAT | A deleted chunk. Used by a program that wants to use “transactions” for file updates. |
| 18 | — | — | not yet defined |
| 19-30 | — | — | not yet defined |
| 31 | present | A Hedge against running out of type numbers. This will use subtypes for defining new chunk types. | |
| 64 | JRNL | Journaling data for transactions. Used with the DEAT chunks. | |
Page content copyright 2003 by John M. Dlugosz. Home:http://www.dlugosz.com, email:mailto:john@dlugosz.com