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diff --git a/include/the-right-computer-system-for-digital-audio.html b/include/the-right-computer-system-for-digital-audio.html
index b323546..848caab 100644
--- a/include/the-right-computer-system-for-digital-audio.html
+++ b/include/the-right-computer-system-for-digital-audio.html
@@ -3,7 +3,7 @@
   It is nice to think that one could just go and buy any computer, install a
   bit of software on it and start using it to record and create music. This
   idea isn't necessarily wrong, but there are some important details that it
-  misses. Any computer that that can be bought today (since somewhere around
+  misses. Any computer that can be bought today (since somewhere around
   the end of 2012) is capable of recording and processing a lot of audio data.
   It will come with a builtin audio interface that can accept inputs from
   microphones and/or electrical instruments; it will have a disk with a huge
@@ -89,13 +89,25 @@
   situations than one without.</td></tr>
   <tr><th>Excessive vibration</th>
   <td>This doesn't affect the flow of data to or from the audio interface, but
-  it can cause the flow of data to and from disk storage to become
+  it can cause the flow of data to and from (spinning) disk storage to become
   <em>much</em> slower. If a computer going to be used in an environment with
   loud live sound (specifically, high bass volume), make sure it is placed so
   that the disk is not subjected to noticeable vibration. The vibrations will
   physically displace the read-write heads of disk, and the resulting errors
   will force a retry of the reading from the disk. Retrying over and over
   massively reduces the rate at which data can be read from the disk. Avoid
-  this.</td></tr>
+  this.If you find this hard to believe, check
+  out <a href="https://www.youtube.com/watch?v=tDacjrSCeq4">this
+  video</a> which shows the effects of merely shouting at your drives. This
+  is likely not an issue with contemporary SSD drives, which have no
+  spinning/head mechanisms.</td></tr>
 </table>
 
+<p>
+  Richard Ames presents a long (28
+  minute) <a href="https://www.youtube.com/watch?v=GUsLLEkswzE">video</a>
+  that is very helpful if you want to understand these issues in more
+  depth. It is a little bit Windows-centric, but the explanations apply to
+  all types of computers and operating systems.
+</p>
+