DOCUMENT:Q93604 08-AUG-2001 [winnt] TITLE :ISO 9660 Support for CD-ROM PRODUCT :Microsoft Windows NT PROD/VER:WINDOWS:2000; winnt:3.1,4.0 OPER/SYS: KEYWORDS:kbother ====================================================================== ------------------------------------------------------------------------------- The information in this article applies to: - Microsoft Windows NT Server versions 3.1, 4.0 - Microsoft Windows NT Workstation versions 3.1, 4.0 - Microsoft Windows 2000 Advanced Server - Microsoft Windows 2000 Professional - Microsoft Windows 2000 Server ------------------------------------------------------------------------------- SUMMARY ======= Windows NT supports ISO 9660 CD-ROM format, but does not support any of the RockRidge CD-ROM format extensions. ISO 9660 is an international standard that defines a file system for compact discs. Almost all systems support ISO 9660. MORE INFORMATION ================ Level one ISO 9660 is similar to the MS-DOS file system. Filenames are limited to eight single-case characters, a period, and a three-character extension. Filenames cannot contain special or extended characters, (no hyphens, tildes, equal or plus signs), only single-case letters, numbers, and underscores. Directory names cannot contain three-digit extensions, just eight single-case characters. All alphabetic characters are in uppercase letters; some software maps these to lowercase letters. Either the filename or the extension may be empty, but not both ("F." and ".E" are both legal filenames). There is a "file version number" that can range from 1 to 32,767 and is separated from the extension by a semicolon. The file version number is ignored on many systems. Subdirectories are allowed to nest up to eight levels deep. Level two ISO 9660 allows longer filenames, up to 32 characters; however, most of the other restrictions still apply. Level two discs cannot be used on some systems, such as MS-DOS. Windows NT 4.0 and Windows 2000 supports Level 3 and allows for for Fragmented files which is needed to support finalised Packet written disk. CDFS also support Joliet extensions which allows for longer files names and unicode names. Rock Ridge is not supported in Windows NT or Windows 2000. Additional query words: prodnt ====================================================================== Keywords : kbother Technology : kbWinNTsearch kbWinNTWsearch kbWinNTW400 kbWinNTW400search kbWinNT400search kbwin2000AdvServ kbwin2000AdvServSearch kbwin2000Serv kbWinNTW310 kbWinNTSsearch kbWinNTS400search kbWinNTS400 kbWinNTS310 kbwin2000ServSearch kbwin2000Search kbwin2000ProSearch kbwin2000Pro kbWinNTS310search kbWinNT310Search kbWinNTW310Search kbWinAdvServSearch Version : WINDOWS:2000; winnt:3.1,4.0 ============================================================================= THE INFORMATION PROVIDED IN THE MICROSOFT KNOWLEDGE BASE IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND. MICROSOFT DISCLAIMS ALL WARRANTIES, EITHER EXPRESS OR IMPLIED, INCLUDING THE WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT SHALL MICROSOFT CORPORATION OR ITS SUPPLIERS BE LIABLE FOR ANY DAMAGES WHATSOEVER INCLUDING DIRECT, INDIRECT, INCIDENTAL, CONSEQUENTIAL, LOSS OF BUSINESS PROFITS OR SPECIAL DAMAGES, EVEN IF MICROSOFT CORPORATION OR ITS SUPPLIERS HAVE BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. SOME STATES DO NOT ALLOW THE EXCLUSION OR LIMITATION OF LIABILITY FOR CONSEQUENTIAL OR INCIDENTAL DAMAGES SO THE FOREGOING LIMITATION MAY NOT APPLY. Copyright Microsoft Corporation 2001.