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6.126.15 UDF Media Format Revision History The following table shows when changes to the UDF Specification have taken place that affect the UDF format that can be recorded on a piece of media. The Document Change Notices (DCNs), which document a specific change, are referenced in the table. The column Update in UDF Revision describes which revision of the UDF specification that the change was included. The fields Minimum UDF Read Revision and Minimum UDF Write Revision relate to the Revision Access Control fields described in 2.2.6.4. Description DCN Updated in UDF Revision Minimum UDF Read Revision Minimum UDF Write Revision Allocation Extent Descriptor 2-002 1.02 1.02 1.02 Path Component File Version Number 2-003 1.02 1.02 1.02 Parent Directory Entries 2-004 1.02 1.02 1.02 Device Specification Extended Attribute 2-005 1.02 1.01 1.02 Maximum Logical Extent Length 2-006 1.02 1.02 1.02 Unallocated Space Entry 2-008 1.02 1.01 1.02 DVD Copyright Management Information 2-009 1.02 1.02 1.02 Logical Volume Identifier 2-010 1.02 1.01 1.02 Extent Length Field of an Allocation Descriptor 2-012 1.02 1.01 1.02 Non-relocatable & Contiguous Flags 2-013 1.02 1.01 1.02 Revision of Requirements for DVD-ROM 2-014 1.02 1.02 1.02 Revision Access Control 2-015 1.02 1.01 1.02 Volume Set Identifier 2-017 1.02 1.01 1.02 UniqueIDs for Extended Attributes 2-018 1.02 1.02 1.02 Clarification of Dstrings 2-019 1.02 1.01 1.02 Application FreeEASpace Extended Attribute 2-020 1.02 1.02 1.02 Update of Identifier Suffix to 1.02 2-021 1.02 1.02 1.02 Update of Identifier Suffix to 1.50 2-025 1.50 1.50 1.50 Virtual Partition Map Entry 2-026 1.50 1.50 1.50 Allocation of Sparable Partition Map 2-027 1.50 1.50 1.50 Addition of Virtual Allocation Table 2-028 1.50 1.50 1.50 Addition of Sparing Table 2-029 1.50 1.50 1.50 Addition of Non-Allocatable Space List 2-030 1.50 1.02 1.50 Reccommmendations for CD Media 2-031 1.50 1.50 1.50 Change 1.50 to 2.00 2-033 2.00 1.02 2.00 Clarified Domain flags 2-034 2.00 1.02 2.00 Unicode 2.0 Support 2-035 2.00 1.02 2.00 Named Streams 2-036 2.00 2.00 2.00 Unique ID Table as a Named Stream 2-037 2.00 1.02 2.00 Mac Resource Fork as a Named Stream 2-038 2.00 2.00 2.00 Location Field of the Extended Attribute Header 2-043 2.00 1.02 2.00 Access Control Lists 2-044 2.00 2.00 2.00 Descriptor Tags spanning block boundaries 2-047 2.00 1.02 2.00 Power Calibration Stream 2-048 2.00 1.02 2.00 Support for CD-R Multisession Required 2-050 2.00 1.50 2.00 Value of fields in LVID for virtual partition on CD-R 2-051 2.00 1.50 2.00 System stream to indicate volume backup time 2-055 2.00 2.00 2.00 New VAT 2-056 2.00 2.00 2.00 Restricting Virtual Addresses 2-057 2.00 1.50 2.00 File Times Extended Attribute 2-058 2.00 1.02 2.00 OS/2 EA Stream 2-061 2.00 2.00 2.00 Non-Allocatable Space Stream 2-062 2.00 1.02 2.00 UDF 2.01 157 March50 April
Desciption DCN Updated in UDF Revision Minimum UDF Read Revision Minimum UDF Write Revision Tag serial number & disaster recovery 5000 2.01 1.02 1.02 Change to DOS name transform algorithm 5002 2.01 - 1.02 Directory search order for dual namespaces 5004 2.01 1.02 1.02 Termination in strategy 4096 clarification 5006 2.01 1.02 1.02 Compression Ids 254/255 clarification 5007 2.01 2.00 2.00 Mac Resource Fork can only be in files 5008 2.01 2.00 2.00 Requirements for CD media 5009 2.01 1.50 1.50 AVDP Placement 5013 2.01 1.50 1.50 Non relocatable bit clarification 5014 2.01 1.02 1.02 Various editorial corrections 5015 2.01 - - PCA stream fix 5018 2.01 2.00 2.00 Parent of system stream directory 5019 2.01 2.00 2.00 OS/400 updates 5020 2.01 2.00 2.00 Missing EntityID definitions 5021 2.01 2.00 2.00 Various editorial corrections 5024 2.01 - - New OS types 5025 2.01 2.00 2.00 PVD Application Identifier field clarification 5026 2.01 1.02 1.02 Descriptor CRC length 5027 2.01 1.02 1.02 POSIX permissions clarifications 5029 2.01 2.00 2.00 Clarification of 3,2,1,1 5030 2.01 2.00 2.00 Volume recognition sequence 5031 2.01 1.02 2.00 Path length 5032 2.01 1.02 1.02 FID LengthOfImplementationUse 5034 2.01 1.02 1.02 Editorial – non-allocatable space stream 5035 2.01 - - Allocation extent descriptor CRC length 5036 2.01 2.00 2.00 File types 248 to 255 5037 2.01 2.00 2.00 Real-time files on DVD-RAM 5038 2.01 2.00 2.00 Packet length specification 5039 2.01 2.00 2.00 Overlapping structures with conflicting field 5040 2.01 2.00 2.00 Information length reconstruction 5041 2.01 2.00 2.00 Timezone interpretation 5042 2.01 1.02 1.02 Missing partition descriptor and sparable partition 5044 2.01 1.02 1.02 Basic restrictions & requirements PD correction 5045 2.01 1.50 1.50 PVD and LVD volume sequence number 5046 2.01 1.02 1.02 Additions to 5.1 informative table 5047 2.01 2.00 2.00 Clarify uniqueID use for EAs/streams 5048 2.01 2.00 2.00 UDF 2.01 158 March50 April
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Universal Disk Format ® Specificat
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REVISION HISTORY 1.00 October 24, 1
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CONTENTS 1. INTRODUCTION ..........
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6.4 OSTA Compressed Unicode Algorit
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1. Introduction The OSTA Universal
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1.2 Compliance This document requir
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Media Block Address NOTE 1: This is
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1.3.3 Terms May Optional Shall Shou
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non-overlapping Partitions with 2 p
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2.1 Part 1 - General 2.1.1 Characte
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length of the field. The characters
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2.1.5.2 char Identifier[23] Unless
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The Suffix Type column in the above
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For an Application Entity Identifie
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2.2 Part 3 - Volume Structure 2.2.1
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NOTE: This field is used to determi
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2.2.4 Logical Volume Descriptor str
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2.2.5 Unallocated Space Descriptor
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EntityID. The scope of this EntityI
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2.2.7.2.2 dstring LogicalVolumeIden
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Layout of Type 2 partition map for
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• Bits 1-7: Reserved. Shall be se
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Virtual Allocation Table structure
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the offset and length of a partitio
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The Metadata Partition Map (see2.2.
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2.2.13.1 Metadata File (and Metadat
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2.2.13.4 Procedure for de-allocatin
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} struct EntityID byte byte Impleme
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2.3.2 File Set Descriptor struct Fi
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2.3.2.7 struct EntityID DomainIdent
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In order to assist a UDF implementa
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2.3.5.1 Uint16 StrategyType The co
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2.3.6 File Entry struct FileEntry {
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2.3.6.8 FileLinkCount Hard links to
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Descriptors should be used. For exa
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2.3.11.2 Uint32 PreviousAllocationE
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3.2 Part 3 - Volume Structure 3.2.1
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3.3 Part 4 - File System 3.3.1 File
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3.3.2.1.2 Macintosh Bits 6 & 7 (Set
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3.3.3 File Entry struct FileEntry {
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would be considered writable if the
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3.3.3.5 byte Extended Attributes Se
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ignored and the file creation time
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3.3.4.5.1.1 FreeEASpace This extend
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MacVolumeInfo format RBP Length Nam
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UDFFXInfo format (Volume IV, page 1
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The ApplicationUse area for this ex
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stream directory. If present, there
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Since the streams listed above have
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Object Logical Block Number is the
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mechanism for the host software to
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Vendor ID - The Vendor ID reported
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The OS2EA Stream contains a table o
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4.2.2 File Identifier Descriptor st
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Definitions: A FileIdentifier shall
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3. Invalid Characters: A FileIdenti
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4. Trailing Periods and Spaces: All
Page 116 and 117: If there is a file extension then t
Page 118 and 119: defined as space that is not direct
Page 120 and 121: UDF 2.01 111 March50 April
Page 122 and 123: 6.2 UDF Entity Identifier Values En
Page 124 and 125: 8 0 BeOS - generic 9 0 Windows CE -
Page 126 and 127: } } returnValue = unicodeIndex; } r
Page 128 and 129: } return crc; #ifdef MAIN unsigned
Page 130 and 131: 6.6 Algorithm for Strategy Type 409
Page 132 and 133: nameLen = udfNameLen; } else { /* A
Page 134 and 135: } needsCRC = TRUE; /* Append the CR
Page 136 and 137: if (index < udfLabelLen || index ==
Page 138 and 139: UDF 2.01 129 March50 April
Page 140 and 141: unicode_t *udfName, /* (Input) Name
Page 142 and 143: } #ifdef (OS2 | WIN_95 | WIN_NT) /*
Page 144 and 145: 6.8 Extended Attribute Checksum Alg
Page 146 and 147: • The data of each file shall be
Page 148 and 149: Read the File Identifier Descriptor
Page 150 and 151: • An intermediate state is allowe
Page 152 and 153: • The host shall perform read/mod
Page 154 and 155: 6.10.2.6.3 Level 3 No restrictions
Page 156 and 157: ISO 9660 converted to UDF 1 st sess
Page 158 and 159: For File Structure: 5. Unallocated
Page 160 and 161: 6.13 Recommendations for DVD+R and
Page 162 and 163: 6.13.1.4.2 Anchor Volume Descriptor
Page 164 and 165: 6.13.2.1 Requirements • The packe
Page 168 and 169: Description DCN Updated in UDF Revi
Page 170 and 171: Registration Form Disk Format Speci
Page 172 and 173: L Logical Block Size, 8, 9, 2425 Lo
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