diff --git a/docs/iTunesSD3gen.md b/docs/iTunesSD3gen.md
index 8580603..237e598 100644
--- a/docs/iTunesSD3gen.md
+++ b/docs/iTunesSD3gen.md
@@ -41,9 +41,10 @@ Here's the general layout of an iTunesSD file:<br>
 </td>
         <td>4<br>
 </td>
-        <td>?<br>
+        <td>Version number?<br>
 </td>
-        <td><span style="font-family: 'Courier New',Courier,monospace;">0x03000002</span><br>
+        <td><span style="font-family: 'Courier New',Courier,monospace;">0x03000002<br>
+        Old values:<br>0x02010001<br>Gen 2:<br>0x010600<br>0x010800<br></span><br>
 </td>
         <td><span style="font-family: 'Courier New',Courier,monospace;">03 00 00 02</span><br>
 </td>
@@ -115,7 +116,7 @@ Here's the general layout of an iTunesSD file:<br>
 </td>
         <td>1<br>
 </td>
-        <td><br>
+        <td>Turns on any track voiceover feedback<br>
 </td>
         <td><span style="font-family: 'Courier New',Courier,monospace;">1</span><br>
 </td>