Edmund GRIMLEY EVANS wrote on 2001-02-02 12:04 UTC:
> CDs are a special case, because they're read-only.

No problem here. Both the CD and DVD file structures use ISO 2022 to
announce what single encoding is used throughout the volume. The
commonly used implementation level of ISO 9660 (= ECMA-119) anyway
restricts filenames to a 8.3 format and the ASCII subset [A-Z0-9_]
(called "d-characters" in the standard). DVDs with ISO 13346 (=
ECMA-167) file system usually provide only for both ISO 8859-1 and UCS-2
(as specified in the UDF profile).

It is the job of a CD/DVD ROM driver to map file names to the preferred
file encoding on a system (specified at mount time). Just like with any
other file system with specified fixed filename encoding (NTFS, VFAT,
etc.).

ftp://ftp.ecma.ch/ecma-st/Ecma-119.pdf
ftp://ftp.ecma.ch/ecma-st/Ecma-167.pdf
http://www2.osta.org/osta/html/ostatech.html
http://www.fadden.com/cdrfaq/faq03.html#[3-5]

Markus

-- 
Markus G. Kuhn, Computer Laboratory, University of Cambridge, UK
Email: mkuhn at acm.org,  WWW: <http://www.cl.cam.ac.uk/~mgk25/>

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