diff --git a/Flawless.Core/BinaryDataFormat/NetworkDepotObject.cs b/Flawless.Core/BinaryDataFormat/NetworkDepotObject.cs
deleted file mode 100644
index c8c9f20..0000000
--- a/Flawless.Core/BinaryDataFormat/NetworkDepotObject.cs
+++ /dev/null
@@ -1,108 +0,0 @@
-using System.Runtime.InteropServices;
-
-namespace Flawless.Core.BinaryDataFormat;
-
-/* Depot Transmission Format Design - Version 1
- *
- * We have shrink some layout design and remap fields in order to optimize for networking transmission.
- *
- * Notice that we have assumed that all data are represent as LITTLE ENDIAN.
- *
- * Padding with 8 byte width, so:
- *
- * ------------------------------------------
- * 0       : Version Code
- * 1       : Network Transmission Feature
- * 2       : Compressing Algorithm Type (CompressType)
- * 3       : Checksum Confuser
- * 4       : Depot Generate Time
- * 5       : ~
- * 6       : ~
- * 7       : ~
- * ------------------------------------------
- * 8       : ~
- * 9       : ~
- * 10      : ~
- * 11      : ~
- * 12      : File Map String Size
- * 13      : ~
- * 14      : ~
- * 15      : ~
- * ------------------------------------------
- * 16      : ~
- * 17      : ~
- * 18      : ~
- * 19      : ~
- * 20      : ~
- * 21      : ~
- * 22      : ~
- * 23      : ~
- * ------------------------------------------
- * 24      : ~
- * 25      : ~
- * 26      : ~
- * 27      : ~
- * 28      : Payload Size
- * 29      : ~
- * 30      : ~
- * 31      : ~
- * ------------------------------------------
- * 32      : ~
- * 33      : ~
- * 34      : ~
- * 35      : ~
- * 36      : MD5 Checksum (Standard MD5Checksum)
- * 37      : ~
- * 38      : ~
- * 39      : ~
- * ------------------------------------------
- * 40      : ~
- * 41      : ~
- * 42      : ~
- * 43      : ~
- * 44      : ~
- * 45      : ~
- * 46      : ~
- * 47      : ~
- * ------------------------------------------
- * 48      : ~
- * 49      : ~
- * 50      : ~
- * 51      : ~
- * 52      : ~
- * ------------------------------------------
- * FILE NAME MAP (STRING IN UTF8)
- * ------------------------------------------
- * PAYLOAD
- */
-
-[Flags]
-public enum NetworkTransmissionFeatureFlag: byte
-{
-    FileMapIsJson = 1 << 0,
-    FileMapUseCompressionArgument = 1 << 7,
-}
-
-[Serializable, StructLayout(LayoutKind.Explicit, CharSet = CharSet.Ansi, Pack = 8, Size = 52)]
-public struct NetworkDepotHeaderV1
-{
-    [FieldOffset(0)] public byte Version;
-    
-    [FieldOffset(1)] public NetworkTransmissionFeatureFlag NetworkTransmissionFeature;
-    
-    [FieldOffset(2)] public byte CompressType;
-
-    [FieldOffset(3)] public byte Md5Confuser;
-
-    [FieldOffset(4)] public ulong GenerateTime;
-
-    [FieldOffset(12)] public ulong FileMapStringSizeLower;
-    
-    [FieldOffset(20)] public ulong FileMapStringSizeUpper;
-    
-    [FieldOffset(28)] public ulong PayloadSize;
-    
-    [FieldOffset(36)] public ulong Md5ChecksumLower;
-    
-    [FieldOffset(44)] public ulong Md5ChecksumUpper;
-}
diff --git a/Flawless.Core/BinaryDataFormat/NetworkDepotObjectV1.cs b/Flawless.Core/BinaryDataFormat/NetworkDepotObjectV1.cs
new file mode 100644
index 0000000..27f3e48
--- /dev/null
+++ b/Flawless.Core/BinaryDataFormat/NetworkDepotObjectV1.cs
@@ -0,0 +1,108 @@
+using System.Runtime.InteropServices;
+
+namespace Flawless.Core.BinaryDataFormat;
+
+/* Depot Transmission Format Design - Version 1
+ *
+ * We have shrink some layout design and remap fields in order to optimize for networking transmission. You may noticed
+ * that we don't have a compressing info, this is due to compressing is mainly about how did depot stored in local disk,
+ * when using network transmission, we may compress it from outside. So we let compressing to go.
+ *
+ * Notice that we assume that all data are represent as LITTLE ENDIAN.
+ *
+ * Padding with 4 byte width, so:
+ *
+ * ------------------------------------------------------------
+ * 0       : Version Code
+ * 1       : Network Transmission Feature
+ * 2       : (Preserve)
+ * 3       : (Preserve)
+ * ------------------------------------------------------------
+ * 4       : (Preserve)
+ * 5       : (Preserve)
+ * 6       : (Preserve)
+ * 7       : (Preserve)
+ * ------------------------------------------------------------
+ * 8       : File Map String Size
+ * 9       : ~
+ * 10      : ~
+ * 11      : ~
+ * ------------------------------------------------------------
+ * 12      : ~
+ * 13      : ~
+ * 14      : ~
+ * 15      : ~
+ * ------------------------------------------------------------
+ * 16      : MD5 Checksum (Standard DepotMD5Checksum)
+ * 17      : ~
+ * 18      : ~
+ * 19      : ~
+ * ------------------------------------------------------------
+ * 20      : ~
+ * 21      : ~
+ * 22      : ~
+ * 23      : ~
+ * ------------------------------------------------------------
+ * 24      : 
+ * 25      : ~
+ * 26      : ~
+ * 27      : ~
+ * ------------------------------------------------------------
+ * 28      : ~
+ * 29      : ~
+ * 30      : ~
+ * 31      : ~
+ * ------------------------------------------------------------
+ * 32      : Depot Generate Time
+ * 33      : ~
+ * 34      : ~
+ * 35      : ~
+ * ------------------------------------------------------------
+ * 36      : ~
+ * 37      : ~
+ * 38      : ~
+ * 39      : ~
+ * ------------------------------------------------------------
+ * 40      : Payload Size
+ * 41      : ~
+ * 42      : ~
+ * 43      : ~
+ * ------------------------------------------------------------
+ * 44      : ~
+ * 45      : ~
+ * 46      : ~
+ * 47      : ~
+ * ------------------------------------------------------------
+ * PAYLOAD (OPTIONAL)
+ * ------------------------------------------------------------
+ * FILE NAME MAP (OPTIONAL)
+ * ------------------------------------------------------------
+ */
+
+[Flags]
+public enum NetworkTransmissionFeatureFlag: byte
+{
+    FileMapIsJson = 1 << 0,
+    WithFileMap = 1 << 1,
+    WithPayload = 1 << 2,
+    CompressFileMap = 1 << 7,
+}
+
+[Serializable, StructLayout(LayoutKind.Explicit, CharSet = CharSet.Ansi, Pack = 4, Size = 48)]
+public struct NetworkDepotHeaderV1
+{
+    [FieldOffset(0)] public byte Version;
+    
+    [FieldOffset(1)] public NetworkTransmissionFeatureFlag NetworkTransmissionFeature;
+    
+    [FieldOffset(8)] public ulong FileMapStringSize;
+
+    [FieldOffset(16)] public ulong Md5ChecksumLower;
+    
+    [FieldOffset(24)] public ulong Md5ChecksumUpper;
+    
+    [FieldOffset(32)] public ulong GenerateTime;
+    
+    [FieldOffset(40)] public ulong PayloadSize;
+
+}
diff --git a/Flawless.Core/BinaryDataFormat/StandardDepotObject.cs b/Flawless.Core/BinaryDataFormat/StandardDepotObject.cs
deleted file mode 100644
index c03a27b..0000000
--- a/Flawless.Core/BinaryDataFormat/StandardDepotObject.cs
+++ /dev/null
@@ -1,131 +0,0 @@
-using System.Runtime.InteropServices;
-using Flawless.Core.Modal;
-
-namespace Flawless.Core.BinaryDataFormat;
-
-/* Depot File System Format Design - Version 1
- *
- * For best accessing performance, consider use checksum as filename. Binary info did not contains file name mapping, so
- * use another file to get the file map of this depot. The structure to describe a map has already defined below.
- *
- * Consider of compability when depot format was updated, we have configure a lots of area as empty.
- *
- * Notice that we assuming that all data are represent as LITTLE ENDIAN.
- *
- * Padding with 4 byte width, so:
- *
- * ------------------------------------------
- * 0       : Magic Number
- * 1       : ~
- * 2       : ~
- * 3       : ~
- * ------------------------------------------
- * 4       : MD5 Checksum (Header + Data)
- * 5       : ~
- * 6       : ~
- * 7       : ~
- * ------------------------------------------
- * 8       : ~
- * 9       : ~
- * 10      : ~
- * 11      : ~
- * ------------------------------------------
- * 12      : ~
- * 13      : ~
- * 14      : ~
- * 15      : ~
- * ------------------------------------------
- * 16      : ~
- * 17      : ~
- * 18      : ~
- * 19      : ~
- * ------------------------------------------
- * 20      : Version Code
- * 21      : Checksum Confuser
- * 22      : (Unused)
- * 23      : (Unused)
- * ------------------------------------------
- * 24      : Depot Generate Time
- * 25      : ~
- * 26      : ~
- * 27      : ~
- * ------------------------------------------
- * 28      : ~
- * 29      : ~
- * 30      : ~
- * 31      : ~
- * ------------------------------------------
- * 32      : Compressing Algorithm Type (CompressType)
- * 33      : (Preserve)
- * 34      : (Preserve)
- * 35      : (Preserve)
- * ------------------------------------------
- * 36      : (Preserve)
- * 37      : (Preserve)
- * 38      : (Preserve)
- * 39      : (Preserve)
- * ------------------------------------------
- * 40      : Payload Size
- * 41      : ~
- * 42      : ~
- * 43      : ~
- * ------------------------------------------
- * 44      : ~
- * 45      : ~
- * 46      : ~
- * 47      : ~
- * ------------------------------------------
- * 48      : (Unused)
- * 49      : (Unused)
- * 50      : (Unused)
- * 51      : (Unused)
- * ------------------------------------------
- * 52      : (Unused)
- * 53      : (Unused)
- * 54      : (Unused)
- * 55      : (Unused)
- * ------------------------------------------
- * 56      : (Unused)
- * 57      : (Unused)
- * 58      : (Unused)
- * 59      : (Unused)
- * ------------------------------------------
- * 60      : (Unused)
- * 61      : (Unused)
- * 62      : (Unused)
- * 63      : (Unused)
- * ------------------------------------------
- * PAYLOAD
- */
-
-[Serializable, StructLayout(LayoutKind.Explicit, CharSet = CharSet.Ansi, Pack = 4, Size = 64)]
-public struct StandardDepotHeaderV1
-{
-    public const uint FormatMagicNumber = 0xAAAAAAAAu;
-    
-    [FieldOffset(0)] public uint MagicNumber;
-    
-    [FieldOffset(4)] public ulong Md5ChecksumLower;
-    
-    [FieldOffset(12)] public ulong Md5ChecksumUpper;
-    
-    [FieldOffset(20)] public byte Version;
-
-    [FieldOffset(21)] public byte Md5Confuser;
-
-    [FieldOffset(22)] public ushort PayloadUnit;
-
-    [FieldOffset(24)] public ulong GenerateTime;
-    
-    [FieldOffset(32)] public byte CompressType;
-    
-    [FieldOffset(40)] public ulong PayloadSize;
-}
-
-[Serializable]
-public struct StandardDepotMapV1
-{
-    public uint FileCount;
-
-    public DepotFileInfo[] Files;
-}
\ No newline at end of file
diff --git a/Flawless.Core/BinaryDataFormat/StandardDepotObjectV1.cs b/Flawless.Core/BinaryDataFormat/StandardDepotObjectV1.cs
new file mode 100644
index 0000000..af77df2
--- /dev/null
+++ b/Flawless.Core/BinaryDataFormat/StandardDepotObjectV1.cs
@@ -0,0 +1,129 @@
+using System.Runtime.InteropServices;
+using Flawless.Core.Modal;
+
+namespace Flawless.Core.BinaryDataFormat;
+
+/* Depot File System Format Design - Version 1
+ *
+ * For best accessing performance, consider use checksum as filename. Binary info did not contains file name mapping, so
+ * use another file to get the file map of this depot. The structure to describe a map has already defined below and you
+ * can choose binary or text to store them. Advice to use JSON as text-based solution.
+ *
+ * Consider of compability when depot format was updated, we have configure a lots of area as empty.
+ *
+ * Notice that we assume that all data are represent as LITTLE ENDIAN.
+ *
+ * Padding with 8 byte width, so:
+ *
+ * ------------------------------------------------------------
+ * 0       : Magic Number
+ * 1       : ~
+ * 2       : ~
+ * 3       : ~
+ * 4       : Header CRC Checksum (From self range 8 to 63)
+ * 5       : ~
+ * 6       : ~
+ * 7       : ~
+ * ------------------------------------------------------------
+ * 8       : Version Code
+ * 9       : Compressing Algorithm Type
+ * 10      : (Preserve)
+ * 11      : (Preserve)
+ * 12      : (Preserve)
+ * 13      : (Preserve)
+ * 14      : (Preserve)
+ * 15      : (Preserve)
+ * ------------------------------------------------------------
+ * 16      : File Map MD5 Checksum (From extern map data)
+ * 17      : ~
+ * 18      : ~
+ * 19      : ~
+ * 20      : ~
+ * 21      : ~
+ * 22      : ~
+ * 23      : ~
+ * ------------------------------------------------------------
+ * 24      : 
+ * 25      : ~
+ * 26      : ~
+ * 27      : ~
+ * 28      : ~
+ * 29      : ~
+ * 30      : ~
+ * 31      : ~
+ * ------------------------------------------------------------
+ * 32      : Depot MD5 Checksum (From 48 to end, uncompressed)
+ * 33      : ~
+ * 34      : ~
+ * 35      : ~
+ * 36      : ~
+ * 37      : ~
+ * 38      : ~
+ * 39      : ~
+ * ------------------------------------------------------------
+ * 40      : ~
+ * 41      : ~
+ * 42      : ~
+ * 43      : ~
+ * 44      : ~
+ * 45      : ~
+ * 46      : ~
+ * 47      : ~
+ * ------------------------------------------------------------
+ * 48      : Depot Generate Time
+ * 49      : ~
+ * 50      : ~
+ * 51      : ~
+ * 52      : ~
+ * 53      : ~
+ * 54      : ~
+ * 55      : ~
+ * ------------------------------------------------------------
+ * 56      : Payload Size
+ * 57      : ~
+ * 58      : ~
+ * 59      : ~
+ * 60      : ~
+ * 61      : ~
+ * 62      : ~
+ * 63      : ~
+ * ------------------------------------------------------------
+ * PAYLOAD
+ * ------------------------------------------------------------
+ */
+
+[Serializable, StructLayout(LayoutKind.Explicit, CharSet = CharSet.Ansi, Pack = 8, Size = 64)]
+public struct StandardDepotHeaderV1
+{
+    // 1A: Not a text-based file
+    // F7A373 = Flawless
+    public const uint FormatMagicNumber = 0x1AF7A373u;
+    
+    [FieldOffset(0)] public uint MagicNumber;
+
+    [FieldOffset(4)] public uint HeaderCRCChecksum;
+    
+    [FieldOffset(8)] public byte Version;
+
+    [FieldOffset(9)] public byte CompressType;
+    
+    [FieldOffset(16)] public ulong FileMapMd5ChecksumLower;
+    
+    [FieldOffset(24)] public ulong FileMapMd5ChecksumUpper;
+    
+    [FieldOffset(32)] public ulong DepotMd5ChecksumLower;
+    
+    [FieldOffset(40)] public ulong DepotMd5ChecksumUpper;
+
+    [FieldOffset(48)] public ulong GenerateTime;
+    
+    [FieldOffset(56)] public ulong PayloadSize;
+}
+
+[Serializable]
+public struct StandardDepotMapV1
+{
+    public uint FileCount;
+
+    public DepotFileInfo[] Files;
+}
\ No newline at end of file