From d12d13aaaa51461ad21d3b62b16b84e4fedaebab Mon Sep 17 00:00:00 2001
From: Reto Kromer <rk@reto.ch>
Date: Sat, 2 Jul 2016 07:22:41 +0200
Subject: [PATCH] MKV to MP4

added: MP4 cannot contain PCM sound
---
 index.html | 1 +
 1 file changed, 1 insertion(+)

diff --git a/index.html b/index.html
index c56f479..e96be46 100644
--- a/index.html
+++ b/index.html
@@ -289,6 +289,7 @@
             <dt>-i <i>input_file</i></dt><dd>path and name of the input file</dd>
             <dt>-c:v copy</dt><dd>re-encodes using the same video codec</dd>
             <dt>-c:a aac</dt><dd>re-encodes using the AAC audio codec<br/>
+            Note that sadly MP4 cannot contain sound encoded by a PCM (Pulse-Code Modulation) audio codec.<br/>
             For silent videos you can replace <code>-c:a aac</code> by <code>-an</code>.</dd>
             <dt><i>output_file</i></dt><dd>path and name of the output file</dd>
           </dl>