diff --git a/Decoder/extractVideo.sh b/Decoder/extractVideo.sh
index c4a2825..0417781 100755
--- a/Decoder/extractVideo.sh
+++ b/Decoder/extractVideo.sh
@@ -1,4 +1,5 @@
 #/bin/bash
+mkdir -p chunks
 echo extracting frames
 ffmpeg -loglevel 24 -stats -i input.mp4 /tmp/$$.out%05d.png 
 echo done, processing frames
diff --git a/Decoder/receiver.sh b/Decoder/webcamReceiver.sh
similarity index 94%
rename from Decoder/receiver.sh
rename to Decoder/webcamReceiver.sh
index 307caec..82cfab9 100755
--- a/Decoder/receiver.sh
+++ b/Decoder/webcamReceiver.sh
@@ -1,4 +1,5 @@
 #/bin/bash
+mkdir -p chunks
 while /bin/true;do
 fswebcam -q -r 800x800 a.png
 #dta=$(fswebcam -q -r 1280x720 - | zbarimg -q --raw --nodbus -)