diff --git a/docs/index.md b/docs/index.md
index 7e6bb39..200a053 100644
--- a/docs/index.md
+++ b/docs/index.md
@@ -91,10 +91,21 @@ However, that seems to take 10 years to convert anything. There is an epic
 looking ffmpeg [documetation page](https://trac.ffmpeg.org/wiki/Encode/VP9) all
 about convert to webm which we are looking into.
 
+Some notes from IRC chat:
+
+- If your film was recorded with 25 FPS and you're encoding with 100 FPS (see
+  status line at the bottom from ffmpeg conversion) then it will be done in 4
+  times faster than real time. If encoding at less than 25 FPS, then it will go
+  slower than real time.
+
+- The FPS that you can encode is determined by your CPU power. GPUs can be used
+  but a random person on IRC tells me that better results are seen whilst using
+  CPUs.
+
 It also seems to be possible to use [HandBrake](https://handbrake.fr/) although
 it's unclear where the options in the menu are for doing the conversion.
 
 ### Streaming to Icecast
 
-* [support.mayfirst.org/wiki/StreamDesktop](https://support.mayfirst.org/wiki/StreamDesktop)
-* [wiki.xiph.org/index.php?title=Icecast_Server/Streaming_WebM_to_Icecast_with_FFmpeg](https://wiki.xiph.org/index.php?title=Icecast_Server/Streaming_WebM_to_Icecast_with_FFmpeg&mobileaction=toggle_view_desktop)
+- [support.mayfirst.org/wiki/StreamDesktop](https://support.mayfirst.org/wiki/StreamDesktop)
+- [wiki.xiph.org/index.php?title=Icecast_Server/Streaming_WebM_to_Icecast_with_FFmpeg](https://wiki.xiph.org/index.php?title=Icecast_Server/Streaming_WebM_to_Icecast_with_FFmpeg&mobileaction=toggle_view_desktop)