diff --git a/src/main/java/org/spacehq/packetlib/io/NetInput.java b/src/main/java/org/spacehq/packetlib/io/NetInput.java
index d6294b92..1e792a93 100644
--- a/src/main/java/org/spacehq/packetlib/io/NetInput.java
+++ b/src/main/java/org/spacehq/packetlib/io/NetInput.java
@@ -103,14 +103,6 @@ public interface NetInput {
      */
     public double readDouble() throws IOException;
 
-    /**
-     * Reads the next byte array, getting the length from a prefixed length value.
-     *
-     * @return The next byte array.
-     * @throws java.io.IOException If an I/O error occurs.
-     */
-    public byte[] readPrefixedBytes() throws IOException;
-
     /**
      * Reads the next byte array.
      *
diff --git a/src/main/java/org/spacehq/packetlib/io/NetOutput.java b/src/main/java/org/spacehq/packetlib/io/NetOutput.java
index 30dff1fa..95323a8c 100644
--- a/src/main/java/org/spacehq/packetlib/io/NetOutput.java
+++ b/src/main/java/org/spacehq/packetlib/io/NetOutput.java
@@ -87,14 +87,6 @@ public interface NetOutput {
      */
     public void writeDouble(double d) throws IOException;
 
-    /**
-     * Writes a byte array, prefixing the written data with the array's length.
-     *
-     * @param b Byte array to write.
-     * @throws java.io.IOException If an I/O error occurs.
-     */
-    public void writePrefixedBytes(byte b[]) throws IOException;
-
     /**
      * Writes a byte array.
      *
diff --git a/src/main/java/org/spacehq/packetlib/io/stream/StreamNetInput.java b/src/main/java/org/spacehq/packetlib/io/stream/StreamNetInput.java
index c980e183..4740d7a5 100644
--- a/src/main/java/org/spacehq/packetlib/io/stream/StreamNetInput.java
+++ b/src/main/java/org/spacehq/packetlib/io/stream/StreamNetInput.java
@@ -116,12 +116,6 @@ public class StreamNetInput implements NetInput {
         return Double.longBitsToDouble(this.readLong());
     }
 
-    @Override
-    public byte[] readPrefixedBytes() throws IOException {
-        short length = this.readShort();
-        return this.readBytes(length);
-    }
-
     @Override
     public byte[] readBytes(int length) throws IOException {
         if(length < 0) {
diff --git a/src/main/java/org/spacehq/packetlib/io/stream/StreamNetOutput.java b/src/main/java/org/spacehq/packetlib/io/stream/StreamNetOutput.java
index 9a05bd7e..963212ce 100644
--- a/src/main/java/org/spacehq/packetlib/io/stream/StreamNetOutput.java
+++ b/src/main/java/org/spacehq/packetlib/io/stream/StreamNetOutput.java
@@ -93,12 +93,6 @@ public class StreamNetOutput implements NetOutput {
         this.writeLong(Double.doubleToLongBits(d));
     }
 
-    @Override
-    public void writePrefixedBytes(byte b[]) throws IOException {
-        this.writeShort(b.length);
-        this.writeBytes(b);
-    }
-
     @Override
     public void writeBytes(byte b[]) throws IOException {
         this.writeBytes(b, b.length);
diff --git a/src/main/java/org/spacehq/packetlib/tcp/io/ByteBufNetInput.java b/src/main/java/org/spacehq/packetlib/tcp/io/ByteBufNetInput.java
index 2fb2a605..27223781 100644
--- a/src/main/java/org/spacehq/packetlib/tcp/io/ByteBufNetInput.java
+++ b/src/main/java/org/spacehq/packetlib/tcp/io/ByteBufNetInput.java
@@ -96,12 +96,6 @@ public class ByteBufNetInput implements NetInput {
         return this.buf.readDouble();
     }
 
-    @Override
-    public byte[] readPrefixedBytes() throws IOException {
-        short length = this.buf.readShort();
-        return this.readBytes(length);
-    }
-
     @Override
     public byte[] readBytes(int length) throws IOException {
         if(length < 0) {
diff --git a/src/main/java/org/spacehq/packetlib/tcp/io/ByteBufNetOutput.java b/src/main/java/org/spacehq/packetlib/tcp/io/ByteBufNetOutput.java
index 4983c0e1..5c8390ae 100644
--- a/src/main/java/org/spacehq/packetlib/tcp/io/ByteBufNetOutput.java
+++ b/src/main/java/org/spacehq/packetlib/tcp/io/ByteBufNetOutput.java
@@ -76,12 +76,6 @@ public class ByteBufNetOutput implements NetOutput {
         this.buf.writeDouble(d);
     }
 
-    @Override
-    public void writePrefixedBytes(byte b[]) throws IOException {
-        this.buf.writeShort(b.length);
-        this.buf.writeBytes(b);
-    }
-
     @Override
     public void writeBytes(byte b[]) throws IOException {
         this.buf.writeBytes(b);