diff --git a/Adler32Context.cs b/Adler32Context.cs
index e03f763..9bb2887 100644
--- a/Adler32Context.cs
+++ b/Adler32Context.cs
@@ -79,6 +79,7 @@ namespace DiscImageChef.Checksums
         public byte[] Final()
         {
             uint finalSum = (uint)((sum2 << 16) | sum1);
+            BigEndianBitConverter.IsLittleEndian = BitConverter.IsLittleEndian;
             return BigEndianBitConverter.GetBytes(finalSum);
         }
 
@@ -90,6 +91,7 @@ namespace DiscImageChef.Checksums
             uint finalSum = (uint)((sum2 << 16) | sum1);
             StringBuilder adlerOutput = new StringBuilder();
 
+            BigEndianBitConverter.IsLittleEndian = BitConverter.IsLittleEndian;
             for(int i = 0; i < BigEndianBitConverter.GetBytes(finalSum).Length; i++)
             {
                 adlerOutput.Append(BigEndianBitConverter.GetBytes(finalSum)[i].ToString("x2"));
@@ -123,12 +125,16 @@ namespace DiscImageChef.Checksums
             localSum1 = 1;
             localSum2 = 0;
 
-            localSum1 = (ushort)((localSum1 + fileStream.ReadByte()) % AdlerModule);
-            localSum2 = (ushort)((localSum2 + localSum1) % AdlerModule);
+            for(int i = 0; i < fileStream.Length; i++)
+            {
+                localSum1 = (ushort)((localSum1 + fileStream.ReadByte()) % AdlerModule);
+                localSum2 = (ushort)((localSum2 + localSum1) % AdlerModule);
+            }
 
             finalSum = (uint)((localSum2 << 16) | localSum1);
 
-            hash = BitConverter.GetBytes(finalSum);
+            BigEndianBitConverter.IsLittleEndian = BitConverter.IsLittleEndian;
+            hash = BigEndianBitConverter.GetBytes(finalSum);
 
             StringBuilder adlerOutput = new StringBuilder();
 
@@ -164,7 +170,8 @@ namespace DiscImageChef.Checksums
 
             finalSum = (uint)((localSum2 << 16) | localSum1);
 
-            hash = BitConverter.GetBytes(finalSum);
+            BigEndianBitConverter.IsLittleEndian = BitConverter.IsLittleEndian;
+            hash = BigEndianBitConverter.GetBytes(finalSum);
 
             StringBuilder adlerOutput = new StringBuilder();
 
diff --git a/CRC32Context.cs b/CRC32Context.cs
index 69d0dc1..3d51503 100644
--- a/CRC32Context.cs
+++ b/CRC32Context.cs
@@ -153,8 +153,9 @@ namespace DiscImageChef.Checksums
             for(int i = 0; i < fileStream.Length; i++)
                 localhashInt = (localhashInt >> 8) ^ localTable[fileStream.ReadByte() ^ localhashInt & 0xff];
 
+            localhashInt ^= crc32Seed;
             BigEndianBitConverter.IsLittleEndian = BitConverter.IsLittleEndian;
-            hash = BitConverter.GetBytes(localhashInt);
+            hash = BigEndianBitConverter.GetBytes(localhashInt);
 
             StringBuilder crc32Output = new StringBuilder();
 
@@ -209,8 +210,9 @@ namespace DiscImageChef.Checksums
             for(int i = 0; i < len; i++)
                 localhashInt = (localhashInt >> 8) ^ localTable[data[i] ^ localhashInt & 0xff];
 
+            localhashInt ^= crc32Seed;
             BigEndianBitConverter.IsLittleEndian = BitConverter.IsLittleEndian;
-            hash = BitConverter.GetBytes(localhashInt);
+            hash = BigEndianBitConverter.GetBytes(localhashInt);
 
             StringBuilder crc32Output = new StringBuilder();
 
diff --git a/CRC64Context.cs b/CRC64Context.cs
index 7e7d8e1..8c96b94 100644
--- a/CRC64Context.cs
+++ b/CRC64Context.cs
@@ -153,8 +153,9 @@ namespace DiscImageChef.Checksums
             for(int i = 0; i < fileStream.Length; i++)
                 localhashInt = (localhashInt >> 8) ^ localTable[(ulong)fileStream.ReadByte() ^ localhashInt & 0xffL];
 
+            localhashInt ^= crc64Seed;
             BigEndianBitConverter.IsLittleEndian = BigEndianBitConverter.IsLittleEndian;
-            hash = BitConverter.GetBytes(localhashInt);
+            hash = BigEndianBitConverter.GetBytes(localhashInt);
 
             StringBuilder crc64Output = new StringBuilder();
 
@@ -209,8 +210,9 @@ namespace DiscImageChef.Checksums
             for(int i = 0; i < len; i++)
                 localhashInt = (localhashInt >> 8) ^ localTable[data[i] ^ localhashInt & 0xff];
 
+            localhashInt ^= crc64Seed;
             BigEndianBitConverter.IsLittleEndian = BigEndianBitConverter.IsLittleEndian;
-            hash = BitConverter.GetBytes(localhashInt);
+            hash = BigEndianBitConverter.GetBytes(localhashInt);
 
             StringBuilder crc64Output = new StringBuilder();
 
diff --git a/SpamSumContext.cs b/SpamSumContext.cs
index 9b1b45c..7fb173f 100644
--- a/SpamSumContext.cs
+++ b/SpamSumContext.cs
@@ -491,12 +491,10 @@ namespace DiscImageChef.Checksums
             fuzzyContext.Init();
 
             fuzzyContext.Update(data, len);
+
             hash = null;
 
-            byte[] result;
-            fuzzy_digest(out result);
-
-            return CToString(result);
+            return fuzzyContext.End();
         }
 
         /// <summary>