「UDF(Universal Disk Format)」の編集履歴(バックアップ)一覧に戻る
[volume recognition sequence] { <CD-ROM Volume Descriptor Set> 0+1 [Extended Area] { <Beginning Extended Area Descriptor> 1+ { <Volume Structure Descriptor> | <Boot Descriptor> } n+ <Terminating Extended Area Descriptor> 1+ } 0+ }
struct tag { Uint8 StructureType; byte StandardIdentifier[5]; Uint8 StructureVersion; byte StructureData[2041]; };
"BEA01" | Beginning Extended Area Descriptor |
"TEA01" | Terminating Extended Area Descriptor |
"BOOT2" | Boot Descriptor |
"CD001" | Volume Structure Descriptor |
"CDW02" | Volume Structure Descriptor |
"NSR02" | Volume Structure Descriptor(NSR Descriptor) |
"NSR03" | Volume Structure Descriptor(NSR Descriptor) |
struct tag { Uint16 TagIdentifier; Uint16 DescriptorVersion; byte TagChecksum;|261 byte Reserved; Uint16 TagSerialNumber; Uint16 DescriptorCRC; Uint16 DescriptorCRCLength; Uint32 TagLocation; };
1 | Primary Volume Descriptor |
2 | Anchor Volume Descriptor Pointer |
3 | Volume Descriptor Pointer |
4 | Implementation Use Volume Descriptor |
5 | Partition Descriptor |
6 | Logivcal Volume Descriptor |
7 | Unallocated Space Descriptor |
8 | Terminating Descriptor |
9 | Logical Volume Integrity Descriptor |
256 | File Set Descriptor |
257 | File Identifier Descriptor |
258 | Allocation Extent Descriptor |
259 | Indirect Entry |
260 | Terminal Entry |
261 | File Entry |
262 | Extended Attribute Header Descriptor |
263 | Unallocated Space Entry |
264 | Space Bitmap Descriptor |
265 | Partition Integrity Entry |
266 | Extended File Entry |