diff --git a/docs/spec/spec.adoc b/docs/spec/spec.adoc
index b2805ab..4821684 100644
--- a/docs/spec/spec.adoc
+++ b/docs/spec/spec.adoc
@@ -62,4 +62,8 @@ include::structs/twin_sector.adoc[]
 
 <<<
 
-include::structs/geom.adoc[]
\ No newline at end of file
+include::structs/geom.adoc[]
+
+<<<
+
+include::structs/metadata.adoc[]
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diff --git a/docs/spec/structs/metadata.adoc b/docs/spec/structs/metadata.adoc
new file mode 100644
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+++ b/docs/spec/structs/metadata.adoc
@@ -0,0 +1,219 @@
+=== The metadata block (`META`)
+
+The metadata block contains descriptive information related to the media source, which is not part of the original media data itself.
+Typical fields may include the manufacturer name, device model, acquisition sequence identifiers, and other contextual attributes.
+
+All string values within this block are encoded as little-endian UTF-16 and terminated with a null character.
+
+[source,c]
+#define META_MAGIC 0x4154454D
+/**Metadata block, contains metadata */
+typedef struct MetadataBlockHeader
+{
+    /**Identifier, <see cref="BlockType.MetadataBlock" /> */
+    uint32_t identifier;
+    /**Size in uint8_ts of this whole metadata block */
+    uint32_t blockSize;
+    /**Sequence of media set this media beint64_ts to */
+    int32_t  mediaSequence;
+    /**Total number of media on the media set this media beint64_ts to */
+    int32_t  lastMediaSequence;
+    /**Offset to start of creator string from start of this block */
+    uint32_t creatorOffset;
+    /**Length in uint8_ts of the null-terminated UTF-16LE creator string */
+    uint32_t creatorLength;
+    /**Offset to start of creator string from start of this block */
+    uint32_t commentsOffset;
+    /**Length in uint8_ts of the null-terminated UTF-16LE creator string */
+    uint32_t commentsLength;
+    /**Offset to start of creator string from start of this block */
+    uint32_t mediaTitleOffset;
+    /**Length in uint8_ts of the null-terminated UTF-16LE creator string */
+    uint32_t mediaTitleLength;
+    /**Offset to start of creator string from start of this block */
+    uint32_t mediaManufacturerOffset;
+    /**Length in uint8_ts of the null-terminated UTF-16LE creator string */
+    uint32_t mediaManufacturerLength;
+    /**Offset to start of creator string from start of this block */
+    uint32_t mediaModelOffset;
+    /**Length in uint8_ts of the null-terminated UTF-16LE creator string */
+    uint32_t mediaModelLength;
+    /**Offset to start of creator string from start of this block */
+    uint32_t mediaSerialNumberOffset;
+    /**Length in uint8_ts of the null-terminated UTF-16LE creator string */
+    uint32_t mediaSerialNumberLength;
+    /**Offset to start of creator string from start of this block */
+    uint32_t mediaBarcodeOffset;
+    /**Length in uint8_ts of the null-terminated UTF-16LE creator string */
+    uint32_t mediaBarcodeLength;
+    /**Offset to start of creator string from start of this block */
+    uint32_t mediaPartNumberOffset;
+    /**Length in uint8_ts of the null-terminated UTF-16LE creator string */
+    uint32_t mediaPartNumberLength;
+    /**Offset to start of creator string from start of this block */
+    uint32_t driveManufacturerOffset;
+    /**Length in uint8_ts of the null-terminated UTF-16LE creator string */
+    uint32_t driveManufacturerLength;
+    /**Offset to start of creator string from start of this block */
+    uint32_t driveModelOffset;
+    /**Length in uint8_ts of the null-terminated UTF-16LE creator string */
+    uint32_t driveModelLength;
+    /**Offset to start of creator string from start of this block */
+    uint32_t driveSerialNumberOffset;
+    /**Length in uint8_ts of the null-terminated UTF-16LE creator string */
+    uint32_t driveSerialNumberLength;
+    /**Offset to start of creator string from start of this block */
+    uint32_t driveFirmwareRevisionOffset;
+    /**Length in uint8_ts of the null-terminated UTF-16LE creator string */
+    uint32_t driveFirmwareRevisionLength;
+} MetadataBlockHeader;
+
+==== Field Descriptions
+
+[cols="2,2,2,6",options="header"]
+|===
+|Type
+|Size
+|Name
+|Description
+
+|uint32_t
+|4 bytes
+|identifier
+|The metadata table identifier, always 'META'
+
+|uint32_t
+|4 bytes
+|blockSize
+|The size of this block including all of its data.
+
+|int32_t
+|4 bytes
+|mediaSequence
+|The number of heads.
+
+|int32_t
+|4 bytes
+|lastMediaSequence
+|The number of sectors per track.
+
+|uint32_t
+|4 bytes
+|creatorOffset
+|Offset to start of creator string from start of this block.
+
+|uint32_t
+|4 bytes
+|creatorLength
+|Length in bytes of the creator string.
+
+|uint32_t
+|4 bytes
+|commentsOffset
+|Offset to start of comments string from start of this block.
+
+|uint32_t
+|4 bytes
+|commentsLength
+|Length in bytes of the comments string.
+
+|uint32_t
+|4 bytes
+|mediaTitleOffset
+|Offset to start of media title string from start of this block.
+
+|uint32_t
+|4 bytes
+|mediaTitleLength
+|Length in bytes of the media title string.
+
+|uint32_t
+|4 bytes
+|mediaManufacturerOffset
+|Offset to start of media manufacturer string from start of this block.
+
+|uint32_t
+|4 bytes
+|mediaManufacturerLength
+|Length in bytes of the media manufacturer string.
+
+|uint32_t
+|4 bytes
+|mediaModelOffset
+|Offset to start of media model string from start of this block.
+
+|uint32_t
+|4 bytes
+|mediaModelLength
+|Length in bytes of the media model string.
+
+|uint32_t
+|4 bytes
+|mediaSerialNumberOffset
+|Offset to start of media serial number string from start of this block.
+
+|uint32_t
+|4 bytes
+|mediaSerialNumberLength
+|Length in bytes of the media serial number string.
+
+|uint32_t
+|4 bytes
+|mediaBarcodeOffset
+|Offset to start of media barcode string from start of this block.
+
+|uint32_t
+|4 bytes
+|mediaBarcodeLength
+|Length in bytes of the media barcode string.
+
+|uint32_t
+|4 bytes
+|mediaPartNumberOffset
+|Offset to start of media part number string from start of this block.
+
+|uint32_t
+|4 bytes
+|mediaPartNumberLength
+|Length in bytes of the media part number string.
+
+|uint32_t
+|4 bytes
+|driveManufacturerOffset
+|Offset to start of drive manufacturer string from start of this block.
+
+|uint32_t
+|4 bytes
+|driveManufacturerLength
+|Length in bytes of the drive manufacturer string.
+
+|uint32_t
+|4 bytes
+|driveModelOffset
+|Offset to start of drive model string from start of this block.
+
+|uint32_t
+|4 bytes
+|driveModelLength
+|Length in bytes of the drive model string.
+
+|uint32_t
+|4 bytes
+|driveSerialNumberOffset
+|Offset to start of drive serial number string from start of this block.
+
+|uint32_t
+|4 bytes
+|driveSerialNumberLength
+|Length in bytes of the drive serial number string.
+
+|uint32_t
+|4 bytes
+|driveFirmwareRevisionOffset
+|Offset to start of drive firmware revision string from start of this block.
+
+|uint32_t
+|4 bytes
+|driveFirmwareRevisionLength
+|Length in bytes of the drive firmware revision string.
+|===
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