diff --git a/SabreTools.Serialization/Deserializers/GZip.cs b/SabreTools.Serialization/Deserializers/GZip.cs
index 59d411f0..936cd9ba 100644
--- a/SabreTools.Serialization/Deserializers/GZip.cs
+++ b/SabreTools.Serialization/Deserializers/GZip.cs
@@ -11,7 +11,26 @@ namespace SabreTools.Serialization.Deserializers
         /// <inheritdoc/>
         public override Archive? Deserialize(Stream? data)
         {
-            throw new System.NotImplementedException();
+            // If the data is invalid
+            if (data == null || !data.CanRead)
+                return null;
+
+            try
+            {
+                // Cache the current offset
+                long initialOffset = data.Position;
+
+                var archive = new Archive();
+
+                // TODO: Implement everything
+
+                return archive;
+            }
+            catch
+            {
+                // Ignore the actual error
+                return null;
+            }
         }
     }
 }
diff --git a/SabreTools.Serialization/Deserializers/TapeArchive.cs b/SabreTools.Serialization/Deserializers/TapeArchive.cs
index 089b7f82..56a6fd22 100644
--- a/SabreTools.Serialization/Deserializers/TapeArchive.cs
+++ b/SabreTools.Serialization/Deserializers/TapeArchive.cs
@@ -11,9 +11,26 @@ namespace SabreTools.Serialization.Deserializers
         /// <inheritdoc/>
         public override Archive? Deserialize(Stream? data)
         {
-            throw new System.NotImplementedException();
+            // If the data is invalid
+            if (data == null || !data.CanRead)
+                return null;
+
+            try
+            {
+                // Cache the current offset
+                long initialOffset = data.Position;
+
+                var archive = new Archive();
+
+                // TODO: Implement everything
+
+                return archive;
+            }
+            catch
+            {
+                // Ignore the actual error
+                return null;
+            }
         }
-
-
     }
 }