diff --git a/source/cChunk.cpp b/source/cChunk.cpp
index 7e79fc806..9a18ab0fe 100644
--- a/source/cChunk.cpp
+++ b/source/cChunk.cpp
@@ -341,9 +341,14 @@ void cChunk::Tick(float a_Dt, MTRand & a_TickRandom)
 		MultiBlock.m_ChunkX = m_PosX;
 		MultiBlock.m_ChunkZ = m_PosZ;
 		MultiBlock.m_NumBlocks = (short)PendingSendBlocks;
+#if (MINECRAFT_1_2_2 == 1)
+		MultiBlock.m_Data = new cPacket_MultiBlock::sBlockChange[ PendingSendBlocks ];
+		MultiBlock.m_DataSize = PendingSendBlocks * sizeof( cPacket_MultiBlock::sBlockChange );
+#else
 		MultiBlock.m_BlockCoordinates = new unsigned short[PendingSendBlocks];
 		MultiBlock.m_BlockTypes = new char[PendingSendBlocks];
 		MultiBlock.m_BlockMetas = new char[PendingSendBlocks];
+#endif
 		//LOG("Sending multiblock packet for %i blocks", PendingSendBlocks );
 		for( unsigned int i = 0; i < PendingSendBlocks; i++)
 		{
@@ -352,10 +357,18 @@ void cChunk::Tick(float a_Dt, MTRand & a_TickRandom)
 			unsigned int Z = (index / 128) % 16;
 			unsigned int X = (index / (128*16));
 
+#if (MINECRAFT_1_2_2 == 1)
+			unsigned int Coords = Z | (X << 4) | (Y << 8);
+			unsigned int Blocks = E_BLOCK_DIRT;//E_BLOCK_STONE;
+			MultiBlock.m_Data[i].Data = Coords | (E_BLOCK_STONE) << 16;
+//			MultiBlock.m_Data[i].Coords = E_BLOCK_STONE;//(Z&0xf) | (X&0xf)<<4 | (Y&0xff)<<8;//(Y&0xff) | (Z&0xf) << 8 | (X&0xf) << 12;
+
+#else
 			MultiBlock.m_BlockCoordinates[i] = (Z&0xf) | (X&0xf)<<4 | (Y&0xff)<<8;
 			//LOG("X: %i Y: %i Z: %i Combo: 0x%04x", X, Y, Z, MultiBlock.m_BlockCoordinates[i] );
 			MultiBlock.m_BlockTypes[i] = m_BlockType[index];
 			MultiBlock.m_BlockMetas[i] = GetLight( m_BlockMeta, index );
+#endif
 		}
 		m_PendingSendBlocks.clear();
 		PendingSendBlocks = m_PendingSendBlocks.size();
diff --git a/source/packets/cPacket_MapChunk.cpp b/source/packets/cPacket_MapChunk.cpp
index 99afd9a40..e9ebf8355 100644
--- a/source/packets/cPacket_MapChunk.cpp
+++ b/source/packets/cPacket_MapChunk.cpp
@@ -49,9 +49,10 @@ cPacket_MapChunk::cPacket_MapChunk(cChunk * a_Chunk)
 			AllData[iterator] = a_Chunk->GetBlock( x, y+i*16, z );
 			++iterator;
 		}
-
-		//iterator+=2048*2; // Ignore light and stuff
 	}
+	//TODO: Send block metadata
+	//TODO: Send block light
+	//TODO: Send sky light
 
 	uLongf CompressedSize = compressBound( DataSize );
 	char * CompressedBlockData = new char[CompressedSize];
diff --git a/source/packets/cPacket_MultiBlock.cpp b/source/packets/cPacket_MultiBlock.cpp
index dbdc11c02..2c9165d0b 100644
--- a/source/packets/cPacket_MultiBlock.cpp
+++ b/source/packets/cPacket_MultiBlock.cpp
@@ -13,12 +13,20 @@ cPacket_MultiBlock::cPacket_MultiBlock( const cPacket_MultiBlock & a_Copy )
 	m_ChunkX = a_Copy.m_ChunkX;
 	m_ChunkZ = a_Copy.m_ChunkZ;
 	m_NumBlocks = a_Copy.m_NumBlocks;
+
+#if (MINECRAFT_1_2_2 == 1)
+	m_DataSize = a_Copy.m_DataSize;
+
+	m_Data = new sBlockChange[m_NumBlocks];
+	memcpy( m_Data, a_Copy.m_Data, sizeof(sBlockChange)*m_NumBlocks );
+#else
 	m_BlockCoordinates = new unsigned short[m_NumBlocks];
 	memcpy( m_BlockCoordinates, a_Copy.m_BlockCoordinates, sizeof(short)*m_NumBlocks );
 	m_BlockTypes = new char[m_NumBlocks];
 	memcpy( m_BlockTypes, a_Copy.m_BlockTypes, m_NumBlocks );
 	m_BlockMetas = new char[m_NumBlocks];
 	memcpy( m_BlockMetas, a_Copy.m_BlockMetas, m_NumBlocks );
+#endif
 }
 
 
@@ -27,9 +35,13 @@ cPacket_MultiBlock::cPacket_MultiBlock( const cPacket_MultiBlock & a_Copy )
 
 cPacket_MultiBlock::~cPacket_MultiBlock()
 {
+#if (MINECRAFT_1_2_2 == 1)
+	delete [] m_Data;
+#else
 	if( m_BlockCoordinates ) delete [] m_BlockCoordinates;
 	if( m_BlockTypes ) delete [] m_BlockTypes;
 	if( m_BlockMetas ) delete [] m_BlockMetas;
+#endif
 }
 
 
@@ -43,9 +55,14 @@ void cPacket_MultiBlock::Serialize(AString & a_Data) const
 	AppendInteger(a_Data, m_ChunkZ);
 	AppendShort  (a_Data, m_NumBlocks);
 
+#if (MINECRAFT_1_2_2 == 1)
+	AppendInteger(a_Data, m_DataSize);
+	AppendData   (a_Data, (const char*)m_Data, m_DataSize);
+#else
 	AppendData   (a_Data, (char *)m_BlockCoordinates, sizeof(short) * m_NumBlocks);
 	AppendData   (a_Data, m_BlockTypes,	m_NumBlocks);
 	AppendData   (a_Data, m_BlockMetas,	m_NumBlocks);
+#endif
 }
 
 
diff --git a/source/packets/cPacket_MultiBlock.h b/source/packets/cPacket_MultiBlock.h
index aeabbbfed..cd2e5b8f7 100644
--- a/source/packets/cPacket_MultiBlock.h
+++ b/source/packets/cPacket_MultiBlock.h
@@ -10,13 +10,28 @@
 class cPacket_MultiBlock : public cPacket
 {
 public:
+	struct sBlockChange
+	{
+		sBlockChange()
+			: Data( 0 )
+		{}
+		unsigned int Data;
+// 		short Data;   // 4bits metadata ... 12bits block ID
+// 		short Coords; // 8bits Y ... 4bits Z ... 4bits X
+	};
+
 	cPacket_MultiBlock()
 		: m_ChunkX( 0 )
 		, m_ChunkZ( 0 )
 		, m_NumBlocks( 0 )
+#if (MINECRAFT_1_2_2 == 1)
+		, m_DataSize( 0 )
+		, m_Data( 0 )
+#else
 		, m_BlockCoordinates( 0 )
 		, m_BlockTypes( 0 )
 		, m_BlockMetas( 0 )
+#endif
 	{ m_PacketID = E_MULTI_BLOCK; }
 	cPacket_MultiBlock( const cPacket_MultiBlock & a_Copy );
 	~cPacket_MultiBlock();
@@ -28,11 +43,17 @@ public:
 	int m_ChunkZ;
 	short m_NumBlocks;
 
+#if (MINECRAFT_1_2_2 == 1)
+	int m_DataSize; // Should be 4*m_NumBlocks ??
+	sBlockChange* m_Data;
+	static const unsigned int cSize = 1 + 4 + 4 + 2 + 4; // Minimum size (when NumBlocks == 0)
+#else
 	static const unsigned int c_Size = 1 + 4 + 4 + 2; // Minimum size (when NumBlocks == 0)
 
 	unsigned short* m_BlockCoordinates; // x<<12 | z<<8 | y
 	char* m_BlockTypes;
 	char* m_BlockMetas;
+#endif
 };