diff --git a/src/main/java/de/bixilon/minosoft/game/datatypes/SoundCategories.java b/src/main/java/de/bixilon/minosoft/game/datatypes/SoundCategories.java
new file mode 100644
index 000000000..9ab3e5b45
--- /dev/null
+++ b/src/main/java/de/bixilon/minosoft/game/datatypes/SoundCategories.java
@@ -0,0 +1,47 @@
+/*
+ * Codename Minosoft
+ * Copyright (C) 2020 Moritz Zwerger
+ *
+ * This program is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.
+ *
+ *  This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ *
+ *  This software is not affiliated with Mojang AB, the original developer of Minecraft.
+ */
+
+package de.bixilon.minosoft.game.datatypes;
+
+public enum SoundCategories {
+    MASTER(0),
+    MUSIC(1),
+    RECORD(2),
+    WEATHER(3),
+    BLOCK(4),
+    HOSTILE(5),
+    NEUTRAL(6),
+    PLAYER(7),
+    AMBIENT(8),
+    VOICE(9);
+
+
+    final int id;
+
+    SoundCategories(int id) {
+        this.id = id;
+    }
+
+    public static SoundCategories byId(int id) {
+        for (SoundCategories category : values()) {
+            if (category.getId() == id) {
+                return category;
+            }
+        }
+        return null;
+    }
+
+    public int getId() {
+        return id;
+    }
+}
\ No newline at end of file
diff --git a/src/main/java/de/bixilon/minosoft/protocol/packets/clientbound/play/PacketNamedSoundEffect.java b/src/main/java/de/bixilon/minosoft/protocol/packets/clientbound/play/PacketNamedSoundEffect.java
index a9e8acadb..daad96287 100644
--- a/src/main/java/de/bixilon/minosoft/protocol/packets/clientbound/play/PacketNamedSoundEffect.java
+++ b/src/main/java/de/bixilon/minosoft/protocol/packets/clientbound/play/PacketNamedSoundEffect.java
@@ -13,6 +13,7 @@
 
 package de.bixilon.minosoft.protocol.packets.clientbound.play;
 
+import de.bixilon.minosoft.game.datatypes.SoundCategories;
 import de.bixilon.minosoft.game.datatypes.entities.Location;
 import de.bixilon.minosoft.logging.Log;
 import de.bixilon.minosoft.protocol.packets.ClientboundPacket;
@@ -26,7 +27,7 @@ public class PacketNamedSoundEffect implements ClientboundPacket {
     String sound;
     float volume;
     float pitch;
-    int category;
+    SoundCategories category;
 
     @Override
     public boolean read(InByteBuffer buffer) {
@@ -40,7 +41,7 @@ public class PacketNamedSoundEffect implements ClientboundPacket {
                 return true;
             case VERSION_1_9_4:
                 sound = buffer.readString();
-                category = buffer.readVarInt(); // ToDo: category
+                category = SoundCategories.byId(buffer.readVarInt());
                 location = new Location(buffer.readFixedPointNumberInteger() * 4, buffer.readFixedPointNumberInteger() * 4, buffer.readFixedPointNumberInteger() * 4);
                 volume = buffer.readFloat();
                 pitch = (buffer.readByte() * pitchCalc) / 100F;
@@ -50,7 +51,7 @@ public class PacketNamedSoundEffect implements ClientboundPacket {
             case VERSION_1_12_2:
             case VERSION_1_13_2:
                 sound = buffer.readString();
-                category = buffer.readVarInt(); // ToDo: category
+                category = SoundCategories.byId(buffer.readVarInt());
                 location = new Location(buffer.readFixedPointNumberInteger() * 4, buffer.readFixedPointNumberInteger() * 4, buffer.readFixedPointNumberInteger() * 4);
                 volume = buffer.readFloat();
                 pitch = buffer.readFloat();
diff --git a/src/main/java/de/bixilon/minosoft/protocol/packets/clientbound/play/PacketSoundEffect.java b/src/main/java/de/bixilon/minosoft/protocol/packets/clientbound/play/PacketSoundEffect.java
index 4fa86b03e..3633dbf0e 100644
--- a/src/main/java/de/bixilon/minosoft/protocol/packets/clientbound/play/PacketSoundEffect.java
+++ b/src/main/java/de/bixilon/minosoft/protocol/packets/clientbound/play/PacketSoundEffect.java
@@ -13,6 +13,7 @@
 
 package de.bixilon.minosoft.protocol.packets.clientbound.play;
 
+import de.bixilon.minosoft.game.datatypes.SoundCategories;
 import de.bixilon.minosoft.game.datatypes.entities.Location;
 import de.bixilon.minosoft.logging.Log;
 import de.bixilon.minosoft.protocol.packets.ClientboundPacket;
@@ -23,8 +24,8 @@ import de.bixilon.minosoft.protocol.protocol.PacketHandler;
 public class PacketSoundEffect implements ClientboundPacket {
     static final float pitchCalc = 100.0F / 63.0F;
     Location location;
+    SoundCategories category;
     int sound;
-    int category;
     float volume;
     float pitch;
 
@@ -33,7 +34,7 @@ public class PacketSoundEffect implements ClientboundPacket {
         switch (buffer.getVersion()) {
             case VERSION_1_9_4:
                 sound = buffer.readVarInt();
-                category = buffer.readVarInt(); // ToDo: category
+                category = SoundCategories.byId(buffer.readVarInt());
                 location = new Location(buffer.readFixedPointNumberInteger() * 4, buffer.readFixedPointNumberInteger() * 4, buffer.readFixedPointNumberInteger() * 4);
                 volume = buffer.readFloat();
                 pitch = (buffer.readByte() * pitchCalc) / 100F;
@@ -43,7 +44,7 @@ public class PacketSoundEffect implements ClientboundPacket {
             case VERSION_1_12_2:
             case VERSION_1_13_2:
                 sound = buffer.readVarInt();
-                category = buffer.readVarInt(); // ToDo: category
+                category = SoundCategories.byId(buffer.readVarInt());
                 location = new Location(buffer.readFixedPointNumberInteger() * 4, buffer.readFixedPointNumberInteger() * 4, buffer.readFixedPointNumberInteger() * 4);
                 volume = buffer.readFloat();
                 pitch = buffer.readFloat();
@@ -81,4 +82,8 @@ public class PacketSoundEffect implements ClientboundPacket {
     public float getVolume() {
         return volume;
     }
+
+    public SoundCategories getCategory() {
+        return category;
+    }
 }
diff --git a/src/main/java/de/bixilon/minosoft/protocol/packets/clientbound/play/PacketStopSound.java b/src/main/java/de/bixilon/minosoft/protocol/packets/clientbound/play/PacketStopSound.java
index 412d030c7..fd12575c2 100644
--- a/src/main/java/de/bixilon/minosoft/protocol/packets/clientbound/play/PacketStopSound.java
+++ b/src/main/java/de/bixilon/minosoft/protocol/packets/clientbound/play/PacketStopSound.java
@@ -13,6 +13,7 @@
 
 package de.bixilon.minosoft.protocol.packets.clientbound.play;
 
+import de.bixilon.minosoft.game.datatypes.SoundCategories;
 import de.bixilon.minosoft.logging.Log;
 import de.bixilon.minosoft.protocol.packets.ClientboundPacket;
 import de.bixilon.minosoft.protocol.protocol.InByteBuffer;
@@ -20,7 +21,7 @@ import de.bixilon.minosoft.protocol.protocol.PacketHandler;
 import de.bixilon.minosoft.util.BitByte;
 
 public class PacketStopSound implements ClientboundPacket {
-    Integer soundId;
+    SoundCategories category;
     String soundIdentifier;
 
 
@@ -30,17 +31,17 @@ public class PacketStopSound implements ClientboundPacket {
             case VERSION_1_9_4:
             case VERSION_1_10:
             case VERSION_1_11_2:
-                buffer.readString(); // category
+                category = SoundCategories.valueOf(buffer.readString().toUpperCase());
                 soundIdentifier = buffer.readString();
                 return true;
             case VERSION_1_12_2:
                 soundIdentifier = buffer.readString();
-                buffer.readString(); // category
+                category = SoundCategories.valueOf(buffer.readString().toUpperCase());
                 return true;
             case VERSION_1_13_2:
                 byte flags = buffer.readByte();
                 if (BitByte.isBitMask(flags, 0x01)) {
-                    soundId = buffer.readVarInt();
+                    category = SoundCategories.byId(buffer.readVarInt());
                 }
                 if (BitByte.isBitMask(flags, 0x02)) {
                     soundIdentifier = buffer.readString();
@@ -53,7 +54,7 @@ public class PacketStopSound implements ClientboundPacket {
 
     @Override
     public void log() {
-        Log.protocol(String.format("Received stop sound (soundId=%d, soundIdentifier=%s)", soundId, soundIdentifier));
+        Log.protocol(String.format("Received stop sound (category=%d, soundIdentifier=%s)", category, soundIdentifier));
     }
 
     @Override
@@ -61,8 +62,8 @@ public class PacketStopSound implements ClientboundPacket {
         h.handle(this);
     }
 
-    public Integer getSoundId() {
-        return soundId;
+    public SoundCategories getSoundId() {
+        return category;
     }
 
     public String getSoundIdentifier() {
diff --git a/src/main/java/de/bixilon/minosoft/protocol/packets/clientbound/play/PacketTags.java b/src/main/java/de/bixilon/minosoft/protocol/packets/clientbound/play/PacketTags.java
index 0443efcc8..1f6690b13 100644
--- a/src/main/java/de/bixilon/minosoft/protocol/packets/clientbound/play/PacketTags.java
+++ b/src/main/java/de/bixilon/minosoft/protocol/packets/clientbound/play/PacketTags.java
@@ -17,7 +17,6 @@ import de.bixilon.minosoft.game.datatypes.Tag;
 import de.bixilon.minosoft.logging.Log;
 import de.bixilon.minosoft.protocol.packets.ClientboundPacket;
 import de.bixilon.minosoft.protocol.protocol.InByteBuffer;
-import de.bixilon.minosoft.protocol.protocol.InPacketBuffer;
 import de.bixilon.minosoft.protocol.protocol.PacketHandler;
 
 public class PacketTags implements ClientboundPacket {
@@ -38,7 +37,7 @@ public class PacketTags implements ClientboundPacket {
         return false;
     }
 
-    private Tag[] readTags(InPacketBuffer buffer) {
+    private Tag[] readTags(InByteBuffer buffer) {
         Tag[] ret = new Tag[buffer.readVarInt()];
         switch (buffer.getVersion()) {
             case VERSION_1_13_2: