diff --git a/AssetStudio/EndianBinaryReader.cs b/AssetStudio/EndianBinaryReader.cs
index c7f8ad0..5056a66 100644
--- a/AssetStudio/EndianBinaryReader.cs
+++ b/AssetStudio/EndianBinaryReader.cs
@@ -109,7 +109,7 @@ namespace AssetStudio
             {
                 var buff = ReadBytes(8);
                 Array.Reverse(buff);
-                return BitConverter.ToUInt64(buff, 0);
+                return BitConverter.ToDouble(buff, 0);
             }
             return base.ReadDouble();
         }
diff --git a/AssetStudioUtility/Texture2DConverter.cs b/AssetStudioUtility/Texture2DConverter.cs
index dfaf14d..2459817 100644
--- a/AssetStudioUtility/Texture2DConverter.cs
+++ b/AssetStudioUtility/Texture2DConverter.cs
@@ -203,7 +203,7 @@ namespace AssetStudio
         {
             if (platform == BuildTarget.XBOX360)
             {
-                for (var i = 0; i < image_data.Length / 2; i++)
+                for (var i = 0; i < reader.Size / 2; i++)
                 {
                     var b = image_data[i * 2];
                     image_data[i * 2] = image_data[i * 2 + 1];