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ISO 9660: Difference between revisions
Fixes
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(Corrected start address of PVD Abstract File Identifier, which was 1 too high. Sizes of Copyright and Abstract were wrong accordingly.) |
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== Overview and caveats ==
ISO 9660 is not a complex file system, but has a few quirks that are worth remembering. It seems that some operating systems also create non-compliant CDs, so beware! The main example of this is the character set that is available for file names. Strictly, filenames may only consist of uppercase letters A-Z, digits,
dots, and underscores. Further there is a semicolon which separates the visible file name from its version number suffix. Many operating systems also allow lower case letters and other characters. Linux's [[VFS]] displays lower case filenames to the user despite the CD contents actually containing upper case characters.
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Since sectors 0x00-0x0F of the CD are reserved as System Area,
the Volume Descriptors can be found starting at sector 0x10 (16). The format of the volume descriptors is as follows:
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