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→Structure: fixed the format (the old page had the Wii format). I got most of this from the GPL’d part of ES so there might be minor differences.
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+=== Content ===
== Structure ==
== Structure ==
−=== Header ===
+=== Signed blob header ===
{| class="wikitable"
{| class="wikitable"
|- style="background-color: #ddd;"
|- style="background-color: #ddd;"
−! Start
+! Absolute offset
! Length
! Length
! Description
! Description
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| 0x004
| 0x004
| 256
| 256
−| Signature
+| Signature covering Main header and root CMD group hash in the v1 header
|-
|-
| 0x104
| 0x104
| 60
| 60
| Padding modulo 64
| Padding modulo 64
+|}
+
+=== Main header ===
+{| class="wikitable"
+|- style="background-color: #ddd;"
+! Absolute offset
+! Length
+! Description
|-
|-
| 0x140
| 0x140
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| 2
| 2
| Padding modulo 64
| Padding modulo 64
+|}
+
+=== v1 header ===
+{| class="wikitable"
+|- style="background-color: #ddd;"
+! Absolute offset
+! Length
+! Description
|-
|-
| 0x1E4
| 0x1E4
−| 36*nbr_cont
+| 32
−| Contents
+| SHA-256 hash of CMD groups
+|-
+| 0x204
+| 2112
+| 64 CMD groups
+{| class="wikitable"
+|- style="background-color: #ddd;"
+! Offset
+! Length
+! Description
+|-
+| 0x00
+| 2
+| Offset
+|-
+| 0x02
+| 2
+| Number of CMDs in the group
+|-
+| 0x04
+| 32
+| SHA-256 hash of the CMDs in the group
|}
|}
+|}
+
+=== Content metadata (CMD) ===
+The TMD headers are followed by a variable number of CMDs (one per content).
−{| class="wikitable"
{| class="wikitable"
|-
|-
−! Start
+! Offset
! Length
! Length
! Description
! Description
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|-
|-
| 0x10
| 0x10
−| 20
+| 32
−| SHA1 hash
+| SHA-1 hash padded with zeros to the length of a SHA-256 hash
|}
|}