Will Vista honor ACL's in UDF file system?


  • Does Vista or Windows 7 read and honor ACLs (access control lists) from the UDF file system on CD/DVD/BD?  The UDF specification has provisions for Windows ACLs, but I can't find any information indicating that this has actually been implemented on the Windows side. 

    Tuesday, August 11, 2009 4:58 PM


  • For anyone else interested in this, I got my answer:

    The Windows UDF Live File System does not support ACLs on UDF and does not use the "*UDF NT ACL" named stream.  The "*UDF NT ACL" named stream was defined in the UDF specification to allow recording of NT ACLs, but Microsoft currently does not support this and we do not have any plans to do so at this time.

    [Named Edited]
    Chairman OSTA UDF Committee
    Senior Program Manager
    File and Block Storage Group
    Core Operating System Division
    • Marked as answer by Matt_FL Wednesday, August 12, 2009 7:33 PM
    Wednesday, August 12, 2009 7:32 PM