diff --git a/README.md b/README.md
index 0d62a9a..2eb6fb3 100644
--- a/README.md
+++ b/README.md
@@ -9,16 +9,18 @@ flac.js encodes or decodes whole files to FLAC, the Free Lossless Audio Codec. S
 flac.js was built with Emscripten.
 
 ## Building
-If you just want to use flac.js, you don't have to build it. In this case, see [using](#Using) instead.
+If you just want to use flac.js, you don't have to build it. In this case, see [using](#using) instead.
 
 ### Prerequisites
 - A recent linux build system
 - Emscripten 1.25.0 installed and activated
 
 ### Build script
+#### Encoder
 ```bash
-git clone git://github.com/Rillke/flac.js.git flac.js
-cd flac.js
+git clone git://github.com/Rillke/flac.js.git flacenc.js
+cd flacenc.js
+git checkout encoder
 git submodule update --init
 ./make.sh
 ```
@@ -64,6 +66,10 @@ A more extensive example is available on the [project's website](https://blog.ri
 ### Bummer! A 3.5 MiB web worker!
 Yeah, the data file - `flac.data.js` - is huge but conists mostly of null characters and compresses very well; a compressed size of 30.2 KB when sent `gzip`ed is possible.
 
+In case one is just out for encoding to flac, one might replace `worker/flac.js` with `worker/flac.encoder.js` and `worker/flac.data.js` with `flac.encoder.data.js` in the [downloaded project page](https://github.com/Rillke/flac.js/zipball/gh-pages). This way the worker is about 1 MiB in total (uncompressed).
+
+The 3.5 MiB results from flac's decoder and analyzer's [huge stack size](http://lists.xiph.org/pipermail/flac-dev/2015-January/005420.html).
+
 ## Contributing
 Submit patches to this GitHub repository or [file issues](https://github.com/Rillke/flac.js/issues).