diff --git a/README.md b/README.md
index 3774ba3..ecce0a2 100644
--- a/README.md
+++ b/README.md
@@ -1,41 +1,56 @@
+# Get Tracks
+
+`get-tracks.sh` allows you to easily extract music tracks from a file with multiple songs, like a CD-in-a-file.
+
 # Required applications
 
+`get-tracks.sh` is a simple shell script based around `ffmpeg`, using `xxd` and `awk`.
+
 * ffmpeg
 * xxd (with '-r' and '-p' options)
 * awk
 
+It was tested on both OpenBSD and Linux.
+
 # Usage
 
+Download a CD and the starting time of each track in a file, and you're good to go.
+
 ```Bash
-get-tracks.sh rip <audio-file> <time-file>
+get-tracks.sh <audio-file> <time-file>
 
 # Example
-get-track.sh rip doom-eternal.opus doom-eternal.txt
+get-track.sh doom-eternal.opus doom-eternal.txt
 ```
 
 
-`audio-file` can be in any format understood by `ffmpeg`.
+*audio-file* can be in any format understood by `ffmpeg`.
 
-The `time-file` must have this format:
+The *time-file* must have this format:
 
 ```
-0:00 First song
-2:20 Second song
+0:00 intro
+2:20 First song
 3:18 Awesome song
 ```
 
 # Environment variables
 
-* **SIMULATION**: if non empty do not invoke ffmpeg
-* **FORMAT** [mp3,ogg,opus,…]: for the song file format
-* **NONUMBER**: if equals to 1, do not write song number
-* **SEPARATOR**: (default: ' - '), write song number, with this separator
-  example with SEPARATOR='_': song names will be 01_song.opus 02_song.opus…
-* **HEADERS**: if equals to 1, print environment parameters (verbosity, simulation, etc.)
+* **SIMULATION** [empty or not]\
+    do not invoke ffmpeg
+* **NONUMBER** [empty or 1]\
+    do not write song numbers
+* **FORMAT** [mp3,ogg,opus,…]\
+    see the ffmpeg documentation for the output formats available
+* **SEPARATOR** [separator] (default: ' - ')\
+    separator between number and name\
+    example with SEPARATOR='_': 01_intro.opus 02_blah.opus…
+* **HEADERS** [empty or 1]\
+    print environment parameters (verbosity, simulation, etc.)
 * **VERBOSITY** [0-3] (default: 1)\
-  verbosity 0: no output except errors from ffmpeg\
-  verbosity 1: simple indications on the current track being extracted\
-  verbosity 2: print actual ffmpeg commands the script currently runs
+    0: no output except errors from ffmpeg\
+    1: simple indications on the current track being extracted\
+    2: print actual ffmpeg commands the script currently runs
 
 # More
 
diff --git a/get-tracks.sh b/get-tracks.sh
index b396110..33f7166 100755
--- a/get-tracks.sh
+++ b/get-tracks.sh
@@ -161,23 +161,35 @@ rip(){
 }
 
 usage(){
-	echo "usage: $0 command"
-	echo "command: show <song-list>"
-	echo "command: rip  <single-file-playlist> <song-list>"
-	echo
-	echo "song-list line format example: 1:30 My second track of the playlist"
-	echo "show output format: start end title"
-	echo
-	echo "envvar: SIMULATION, if non empty, do not invoke ffmpeg"
-	echo "envvar: NONUMBER, if equals to 1, do not write song number"
-	echo "envvar: FORMAT [mp3,ogg,opus,…], see the ffmpeg documentation"
-	echo "envvar: SEPARATOR [separator] (default: ' - '), write song number, with this separator"
-	echo "        example with SEPARATOR='_': song names will be 01_song.opus 02_song.opus…"
-	echo "envvar: HEADERS, if equals to 1, print environment parameters (verbosity, simulation, etc.)"
-	echo "envvar: VERBOSITY [0-3] (default: 1)"
-	echo "        verbosity 0: no output except errors from ffmpeg"
-	echo "        verbosity 1: simple indications on the current track being extracted"
-	echo "        verbosity 2: print actual ffmpeg commands the script currently runs"
+	cat <<END
+Get tracks:
+usage: $0 <single-file-playlist> <song-list>
+
+Debug mode (displays starting and ending times for each song):
+usage: $0 <song-list>
+
+
+Format for <song-list>:
+  0:00 First track
+  1:30 Second track
+
+Environment variables:
+- SIMULATION [empty or not]
+    do not invoke ffmpeg
+- NONUMBER [empty or 1]
+    do not write song numbers
+- FORMAT [mp3,ogg,opus,…]
+    see the ffmpeg documentation
+- SEPARATOR [separator] (default: ' - ')
+    separator between number and name
+    example with SEPARATOR='_': 01_intro.opus 02_blah.opus…
+- HEADERS [empty or 1]
+    print environment parameters (verbosity, simulation, etc.)
+- VERBOSITY [0-3] (default: 1)
+    0: no output except errors from ffmpeg
+    1: simple indications on the current track being extracted
+    2: print actual ffmpeg commands the script currently runs
+END
 }
 
 if [ $# -lt 1 ]; then
@@ -185,9 +197,6 @@ if [ $# -lt 1 ]; then
 	exit 0
 fi
 
-command=$1
-shift
-
 header(){
 	if [ "$HEADERS" = "1" ]; then
 		echo $*
@@ -240,30 +249,8 @@ if [ $? -ne 0 ]; then
 	exit 1
 fi
 
-case "x-${command}" in
-	x-show)
-
-		# Takes the audio file in first parameter
-		if [ $# -ne 1 ]; then
-			echo "Usage: $0 show time-stamps-file" >&2
-			exit 1
-		fi
-
-		process_time_file < "$1"
-		;;
-
-	x-rip)
-
-		# Takes the audio file in first parameter
-		if [ $# -ne 2 ]; then
-			echo "Usage: $0 show music-file time-stamps-file" >&2
-			exit 1
-		fi
-
-		rip "$1" "$2"
-		;;
-
-	*)
-		usage 1>&2
-		exit 1
+case $# in
+	1) process_time_file < "$1" ;;
+	2) rip "$1" "$2" ;;
+	*) usage 1>&2 ; exit 1 ;;
 esac