diff --git a/src.java/crosby/binary/file/BlockOutputStream.java b/src.java/crosby/binary/file/BlockOutputStream.java
index 10623b0..0ea3e9c 100644
--- a/src.java/crosby/binary/file/BlockOutputStream.java
+++ b/src.java/crosby/binary/file/BlockOutputStream.java
@@ -3,12 +3,9 @@ package crosby.binary.file;
 import java.io.DataOutputStream;
 import java.io.IOException;
 import java.io.OutputStream;
-import java.io.OutputStreamWriter;
 import java.util.ArrayList;
 import java.util.List;
 
-import com.google.protobuf.CodedOutputStream;
-
 enum CompressFlags {
     NONE, DEFLATE
 }
diff --git a/src.java/crosby/binary/file/FileBlockHead.java b/src.java/crosby/binary/file/FileBlockHead.java
index 2798f07..64204f7 100644
--- a/src.java/crosby/binary/file/FileBlockHead.java
+++ b/src.java/crosby/binary/file/FileBlockHead.java
@@ -2,12 +2,8 @@ package crosby.binary.file;
 
 import java.io.DataInputStream;
 import java.io.FileInputStream;
-import java.io.FileOutputStream;
 import java.io.IOException;
 import java.io.InputStream;
-import java.util.zip.DataFormatException;
-import java.util.zip.Inflater;
-
 import com.google.protobuf.ByteString;
 
 import crosby.binary.Fileformat;