diff --git a/src/main/java/com/raoulvdberge/refinedstorage/container/ContainerDiskManipulator.java b/src/main/java/com/raoulvdberge/refinedstorage/container/ContainerDiskManipulator.java
index 7926e4a47..887c9a02b 100755
--- a/src/main/java/com/raoulvdberge/refinedstorage/container/ContainerDiskManipulator.java
+++ b/src/main/java/com/raoulvdberge/refinedstorage/container/ContainerDiskManipulator.java
@@ -16,11 +16,11 @@ public class ContainerDiskManipulator extends ContainerBase {
         }
 
         for (int i = 0; i < 6; ++i) {
-            addSlotToContainer(new SlotItemHandler(manipulator.getDisks(), i, 26 + (i % 2 * 18), ((i / 2) * 18) + 57));
+            addSlotToContainer(new SlotItemHandler(manipulator.getInputDisks(), i, 26 + (i % 2 * 18), ((i / 2) * 18) + 57));
         }
 
         for (int i = 0; i < 6; ++i) {
-            addSlotToContainer(new SlotItemHandler(manipulator.getDisks(), 6 + i, 116 + (i % 2 * 18), ((i / 2) * 18) + 57));
+            addSlotToContainer(new SlotItemHandler(manipulator.getOutputDisks(), i, 116 + (i % 2 * 18), ((i / 2) * 18) + 57));
         }
 
         for (int i = 0; i < 9; ++i) {
diff --git a/src/main/java/com/raoulvdberge/refinedstorage/tile/TileDiskManipulator.java b/src/main/java/com/raoulvdberge/refinedstorage/tile/TileDiskManipulator.java
index 26083995b..9f0dd4a31 100755
--- a/src/main/java/com/raoulvdberge/refinedstorage/tile/TileDiskManipulator.java
+++ b/src/main/java/com/raoulvdberge/refinedstorage/tile/TileDiskManipulator.java
@@ -29,6 +29,7 @@ import net.minecraftforge.fml.relauncher.Side;
 import net.minecraftforge.items.CapabilityItemHandler;
 import net.minecraftforge.items.IItemHandler;
 import net.minecraftforge.items.ItemHandlerHelper;
+import net.minecraftforge.items.wrapper.CombinedInvWrapper;
 
 import java.util.ArrayList;
 
@@ -75,7 +76,7 @@ public class TileDiskManipulator extends TileNode implements IComparable, IFilte
 
     private ItemHandlerUpgrade upgrades = new ItemHandlerUpgrade(4, this, ItemUpgrade.TYPE_SPEED, ItemUpgrade.TYPE_STACK);
 
-    private ItemHandlerBasic disks = new ItemHandlerBasic(12, this, IItemValidator.STORAGE_DISK) {
+    private ItemHandlerBasic inputDisks = new ItemHandlerBasic(6, this, IItemValidator.STORAGE_DISK) {
         @Override
         protected void onContentsChanged(int slot) {
             super.onContentsChanged(slot);
@@ -100,6 +101,8 @@ public class TileDiskManipulator extends TileNode implements IComparable, IFilte
         }
     };
 
+    private ItemHandlerBasic outputDisks = new ItemHandlerBasic(6, this, IItemValidator.STORAGE_DISK);
+
     public class ItemStorage extends ItemStorageNBT {
         public ItemStorage(ItemStack disk) {
             super(disk.getTagCompound(), EnumItemStorageType.getById(disk.getItemDamage()).getCapacity(), TileDiskManipulator.this);
@@ -373,15 +376,14 @@ public class TileDiskManipulator extends TileNode implements IComparable, IFilte
     }
 
     private void moveDriveToOutput(int slot) {
-        ItemStack disk = disks.getStackInSlot(slot);
+        ItemStack disk = inputDisks.getStackInSlot(slot);
         if (disk != null) {
-            int i = 6;
-
-            while (i < 12 && disks.getStackInSlot(i) != null) {
+            int i = 0;
+            while (i < 6 && outputDisks.getStackInSlot(i) != null) {
                 i++;
             }
 
-            if (i == 12) {
+            if (i == 6) {
                 return;
             }
 
@@ -396,9 +398,8 @@ public class TileDiskManipulator extends TileNode implements IComparable, IFilte
                     fluidStorages[slot] = null;
                 }
             }
-
-            disks.extractItem(slot, 1, false);
-            disks.insertItem(i, disk, false);
+            inputDisks.extractItem(slot, 1, false);
+            outputDisks.insertItem(i, disk, false);
         }
     }
 
@@ -437,8 +438,12 @@ public class TileDiskManipulator extends TileNode implements IComparable, IFilte
         return this.mode;
     }
 
-    public IItemHandler getDisks() {
-        return disks;
+    public IItemHandler getInputDisks() {
+        return inputDisks;
+    }
+
+    public IItemHandler getOutputDisks() {
+        return outputDisks;
     }
 
     public IItemHandler getUpgrades() {
@@ -449,10 +454,24 @@ public class TileDiskManipulator extends TileNode implements IComparable, IFilte
     public void read(NBTTagCompound tag) {
         super.read(tag);
 
-        RSUtils.readItems(disks, 0, tag);
+        // Backwards Compatibility
+        ItemHandlerBasic oldDisks = new ItemHandlerBasic(12, this, IItemValidator.STORAGE_DISK);
+        RSUtils.readItems(oldDisks, 0, tag);
+        for (int i = 0; i < 12; ++i) {
+            ItemStack stack = oldDisks.extractItem(i, 1, false);
+            if (stack != null) {
+                if (i < 6) {
+                    inputDisks.insertItem(i, stack, false);
+                } else {
+                    outputDisks.insertItem(i, stack, false);
+                }
+            }
+        }
+
         RSUtils.readItems(itemFilters, 1, tag);
         RSUtils.readItems(fluidFilters, 2, tag);
         RSUtils.readItems(upgrades, 3, tag);
+        RSUtils.readItems(outputDisks, 4, tag);
 
         if (tag.hasKey(NBT_COMPARE)) {
             compare = tag.getInteger(NBT_COMPARE);
@@ -475,10 +494,13 @@ public class TileDiskManipulator extends TileNode implements IComparable, IFilte
     public NBTTagCompound write(NBTTagCompound tag) {
         super.write(tag);
 
-        RSUtils.writeItems(disks, 0, tag);
+        onBreak();
+
+        RSUtils.writeItems(inputDisks, 0, tag);
         RSUtils.writeItems(itemFilters, 1, tag);
         RSUtils.writeItems(fluidFilters, 2, tag);
         RSUtils.writeItems(upgrades, 3, tag);
+        RSUtils.writeItems(outputDisks, 4, tag);
 
         tag.setInteger(NBT_COMPARE, compare);
         tag.setInteger(NBT_MODE, mode);
@@ -490,13 +512,13 @@ public class TileDiskManipulator extends TileNode implements IComparable, IFilte
 
     @Override
     public IItemHandler getDrops() {
-        return disks;
+        return new CombinedInvWrapper(inputDisks, outputDisks, upgrades);
     }
 
     @Override
     public <T> T getCapability(Capability<T> capability, EnumFacing facing) {
         if (capability == CapabilityItemHandler.ITEM_HANDLER_CAPABILITY) {
-            return (T) disks;
+            return facing == EnumFacing.DOWN ? (T) outputDisks : (T) inputDisks;
         }
 
         return super.getCapability(capability, facing);