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Vendor ID – The Vendor ID reported by the drive. Product ID – The Product ID reported by the drive. Firmware Revision Level – The Firmware Revision Level reported by the drive. Serial Number/Device Unique ID – A serial number or other unique identifier for the specific drive, of the model specified by the vendor and product Ids given, which has successfully used the power calibration values reported herein to record data on this disc. Host ID – The host serial number, ethernet ID, or other value (or combination of values) used by an implementation to identify the specific host computer to which the drive was attached when it successfully used the power calibration values reported herein to record data on this disc. An implementation shall attempt to provide a unique value for each host, but is not required to guarantee the value’s uniqueness. Originating Time Stamp – The date and time at which the power calibration values recorded herein were initially verified to have been successfully used. Updated Time Stamp – The date and time at which the power calibration values recorded herein were most recently verified to have been successfully used. Speed – The recording speed, as reported by the drive, at which power calibration values recorded herein were successfully used. This value is the number of kilobytes per second (bytes per second / 1000) that the data was written to the disc by the drive (truncating any fractions). For example, a speed of 176 means data was written to the disc at 176 Kbytes/second, which is the basic CD-DA (Digital Audio) data rate (a.k.a. “1X” for CD-DA). A speed of 353 means data was written to the disc at 353 Kbytes/second, or twice the basic CD-DA data rate (a.k.a. “2X” for CD-DA). CD-ROM recording rates should be adjusted upward (roughly 15%) to the corresponding CD-DA rates to determine the correct speed value (e.g. A “1X” CD-ROM data rate should be recorded as a “1X” CD-DA, which is a speed of 176). Note that these are raw data rates and do not reflect all overhead resulting from (additional) headers, error correction data, etc. Power Calibration Values – The vendor-specific power calibration values reported by the drive. Drive Unique Area – Optional area for recording unrestricted information unique to the drive (such as drive operating temperature), which certain implementations may use to enhance the use of the recorded power calibration information or the operation of the UDF 2.01 95 March50 April
associated drive. The drive manufacturer shall define recording of data in this field. This area shall be an integral multiple of four bytes in length. 3.3.7.4 UDF Backup Time The name of this stream shall be set to: “*UDF Backup” This stream shall have the following contents, which should be embedded in the ICB: UDF Backup Time RBP Length Name Contents 0 12 Backup Time timestamp Backup Time is the latest time that a backup of this volume was performed. 3.3.8 UDF Defined Non-System Streams This section defines the following non-system streams: Stream Name Stream Location Metadata Flag “*UDF Macintosh Resource Fork” Any file 0 “*UDF OS/2 EA” Any file or directory 0 “*UDF NT ACL” Any file or directory 0 “*UDF UNIX ACL” Any file or directory 0 3.3.8.1 Macintosh Resource Fork Stream Because the Resource Fork is referenced by an explicit interface, UDF implementations are not provided the authoritative name for this stream. For the purpose of interchange, the name shall be set to: “*UDF Macintosh Resource Fork” The Metadata bit in the File Characteristics field of the File Identifier Descriptor shall be set to 0 to indicate that the existence of this file should be made known to clients of a platform’s file system interface. 3.3.8.2 OS/2 EA Stream All OS/2 definable extended attributes shall be stored as a named stream whose name shall be set to: “*UDF OS/2 EA” UDF 2.01 96 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
Page 54 and 55: 2.2.13.4 Procedure for de-allocatin
Page 56 and 57: } struct EntityID byte byte Impleme
Page 58 and 59: 2.3.2 File Set Descriptor struct Fi
Page 60 and 61: 2.3.2.7 struct EntityID DomainIdent
Page 62 and 63: In order to assist a UDF implementa
Page 64 and 65: 2.3.5.1 Uint16 StrategyType The co
Page 66 and 67: 2.3.6 File Entry struct FileEntry {
Page 68 and 69: 2.3.6.8 FileLinkCount Hard links to
Page 70 and 71: Descriptors should be used. For exa
Page 72 and 73: 2.3.11.2 Uint32 PreviousAllocationE
Page 74 and 75: 3.2 Part 3 - Volume Structure 3.2.1
Page 76 and 77: 3.3 Part 4 - File System 3.3.1 File
Page 78 and 79: 3.3.2.1.2 Macintosh Bits 6 & 7 (Set
Page 80 and 81: 3.3.3 File Entry struct FileEntry {
Page 82 and 83: would be considered writable if the
Page 84 and 85: 3.3.3.5 byte Extended Attributes Se
Page 86 and 87: ignored and the file creation time
Page 88 and 89: 3.3.4.5.1.1 FreeEASpace This extend
Page 90 and 91: MacVolumeInfo format RBP Length Nam
Page 92 and 93: UDFFXInfo format (Volume IV, page 1
Page 94 and 95: The ApplicationUse area for this ex
Page 96 and 97: stream directory. If present, there
Page 98 and 99: Since the streams listed above have
Page 100 and 101: Object Logical Block Number is the
Page 102 and 103: mechanism for the host software to
Page 106 and 107: The OS2EA Stream contains a table o
Page 108 and 109: 4.2.2 File Identifier Descriptor st
Page 110 and 111: Definitions: A FileIdentifier shall
Page 112 and 113: 3. Invalid Characters: A FileIdenti
Page 114 and 115: 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
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6.10.2.6.3 Level 3 No restrictions
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ISO 9660 converted to UDF 1 st sess
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For File Structure: 5. Unallocated
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6.13 Recommendations for DVD+R and
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6.13.1.4.2 Anchor Volume Descriptor
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6.13.2.1 Requirements • The packe
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6.126.15 UDF Media Format Revision
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Description DCN Updated in UDF Revi
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Registration Form Disk Format Speci
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L Logical Block Size, 8, 9, 2425 Lo
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