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  • Paths
    • dev_bdvd/PS3_GAME/LICDIR/LIC.DAT
    • dev_bdvd/PS3_GM01/LICDIR/LIC.DAT
    • dev_bdvd/PS3_GM02/LICDIR/LIC.DAT
    • etc...

Checked within Level 2 Kernel and possible via lv2syscall476

Final File size is: 0x10000 Bytes

See also Discussion page


00000000 50 53 33 4C 49 43 44 41 00 00 00 01 80 00 00 00 PS3LICDA........
00000010 00 00 09 00 00 00 08 00 00 00 01 00 00 00 00 01 ................
00000020 8C D3 A9 D8 00 00 00 00 00 00 00 00 00 00 00 00 ................
00000800 01 42 4C 45 53 30 31 36 32 33 00 00 00 00 00 00 .BLES01623......


The structure is dependant of how the file is generated in PC and processed by the PS3

  • CRC32 validation
    • LIC.DAT is readed from disc, and copyed to a different location excluding the padding at the end of the file (cropped from first byte of file up to lic_table_end offset)
    • The crc32 value stored at offset 0x20 is replaced by zeroes
    • Now is calculated the crc32 of the edited file
    • The crc32 calculated in previous step is validated against the crc32 value stored at offset 0x20 of the original LIC.DAT
  • CRC32 generation
    • A temporal file is created composed by: header + license table. The crc32 value stored at offset 0x20 is filled with zeroes and works as a placeholder
    • Now is calculated the crc32 of the temporal file
    • The crc32 calculated in previous step is stored at offset 0x20 replacing the zeroes placeholder
    • A padding is added after the lic_table_end offset to increase the final size of LIC.DAT up to 0x10000


Offset Length Example Name Description
0x0 0x8 'PS3LICDA' magic LIC.DAT identifyer
0x8 0x4 0x00000001 version DAT structure version
0xC 0x4 0x80000000 type ? 0x80000000 = retail (used in LIC.DAT under directory PS3_GAME)
0x00000000 = debug (used in LIC.DAT under directory PS3_GM01, PS3_GM02, etc...)
0x10 0x4 0x00000900 lic_table_end License table, absolute end offset. Calculated by: license table start + (license amounts * license size)
0x14 0x4 0x00000800 lic_table_start License table, absolute start offset. Always found 0x800 (static)
0x18 0x4 0x00000100 lic_size License size. Always found 0x100 (static)
0x1C 0x4 0x00000001 lic_num License amount. Values found: 0x1 (single boot discs), 0x2 (dual boot discs), 0x3 (triple boot discs)
0x20 0x4 0x8CD3A9D8 crc32 CRC32 from the first byte of LIC.DAT till the end of license table (includes the CRC32 placeholder filled with zeroes)
0x24  ? 0x0000... padding is unknown where the header ends, probablly aligned to 0x200 but there are much more zeroes after it

License table[edit]

Composed by one or more license entries

License entry[edit]

Relative Offset Length Example Name Description
0x0 0x1 0x1 id_type 0x01 = Title ID
0x02 = SKU ID
0x03 = Content ID
0x1 0x0A (if id_type = 0x01)
0x2A (if id_type = 0x02)
0x25 (if id_type = 0x03)
'BLES01623' id Bootable content identifyer (EBOOT.BIN related)
0x0B (if id_type = 0x01)
0x2B (if id_type = 0x02)
0x26 (if id_type = 0x03)
up to lic_size 0x0000.... padding padding to fill the entry with zeroes up to the "license size" specifyed in the header

The first byte indicates type and size of following text:

  • 0x01 means 0xA bytes, a regular TitleID (ex. BLES01623) with \0 terminating
  • 0x02 means 0x2A bytes, a regular SKU ID (ex. UP0002-BLES01623_00-0000111122223333-E001) with \0 terminating
  • 0x03 means 0x25 bytes, a regular npdrm ContentID (ex. UP0002-BLES01623_00-0000111122223333) with \0 terminating


Padding addded at bottom of LIC.DAT file, to make the total size a multiplyer of bluray disc sectors, and to protect the laser lens because otherway is too tiny and stressing for the laser

This padding is added in the last step when the file is generated in PC, and removed in the first step before the crc32 hash is validated by the PS3