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Created page with "Final Fantasy X stores all of its' game data in a single large archive, called a VBF (Virtuos Big File) archive. [https://en.wikipedia.org/wiki/Virtuos Virtuos] is the develop..."
Final Fantasy X stores all of its' game data in a single large archive, called a VBF (Virtuos Big File) archive. [https://en.wikipedia.org/wiki/Virtuos Virtuos] is the developer contracted by Square Enix to handle the FFX/X-2 HD Remaster.
=== VBF header format ===
{| class="wikitable"
! Offset
! Length
! Name
! Description
|-
| 0x0000
| 4 bytes
| N/A
| VBF header bytes, always equal to 0x5352594b ("SRYK")
|-
| 0x0004
| 4 bytes
| headerLength
| Length of the header block
|-
| 0x0008
| 8 bytes
| numFiles
| Number of files contained in archive
|-
| 0x0010
| numFiles * 16 bytes
| nameHashes
| MD5 hashes of each file name within archive
|-
| colspan="4" align="center" style="background-color:lightgray; font-weight: bold" | The next 5 values are repeated for each file in the archive
|-
| 0x0010 + (numFiles * 16) + (32 * fileIndex)
| 4 bytes
| blockListStarts
| Start offset of file in the block list
|-
| 0x0014 + (numFiles * 16) + (32 * fileIndex)
| 4 bytes
| unknown
| Unknown value, can be left as 0 when reconstructing
|-
| 0x0018 + (numFiles * 16) + (32 * fileIndex)
| 8 bytes
| originalSizes
| Original size of file
|-
| 0x0020 + (numFiles * 16) + (32 * fileIndex)
| 8 bytes
| startOffsets
| Start offset of file data
|-
| 0x0028 + (numFiles * 16) + (32 * fileIndex)
| 8 bytes
| fileNameOffsets
| Offset of file name in string table
|-
| colspan="4" align="center" | ...
|-
| 0x0010 + (numFiles * 48)
| 4 bytes
| stringTableLength
| Length of the string table
|-
| 0x0014 + (numFiles * 48)
| stringTableLength
| stringTable
| String table data
|}
=== VBF header format ===
{| class="wikitable"
! Offset
! Length
! Name
! Description
|-
| 0x0000
| 4 bytes
| N/A
| VBF header bytes, always equal to 0x5352594b ("SRYK")
|-
| 0x0004
| 4 bytes
| headerLength
| Length of the header block
|-
| 0x0008
| 8 bytes
| numFiles
| Number of files contained in archive
|-
| 0x0010
| numFiles * 16 bytes
| nameHashes
| MD5 hashes of each file name within archive
|-
| colspan="4" align="center" style="background-color:lightgray; font-weight: bold" | The next 5 values are repeated for each file in the archive
|-
| 0x0010 + (numFiles * 16) + (32 * fileIndex)
| 4 bytes
| blockListStarts
| Start offset of file in the block list
|-
| 0x0014 + (numFiles * 16) + (32 * fileIndex)
| 4 bytes
| unknown
| Unknown value, can be left as 0 when reconstructing
|-
| 0x0018 + (numFiles * 16) + (32 * fileIndex)
| 8 bytes
| originalSizes
| Original size of file
|-
| 0x0020 + (numFiles * 16) + (32 * fileIndex)
| 8 bytes
| startOffsets
| Start offset of file data
|-
| 0x0028 + (numFiles * 16) + (32 * fileIndex)
| 8 bytes
| fileNameOffsets
| Offset of file name in string table
|-
| colspan="4" align="center" | ...
|-
| 0x0010 + (numFiles * 48)
| 4 bytes
| stringTableLength
| Length of the string table
|-
| 0x0014 + (numFiles * 48)
| stringTableLength
| stringTable
| String table data
|}
