diff --git a/ui/public/fake_api/part1_240.mp4 b/ui/public/fake_api/part1_240.mp4
index 633f476..49ece72 100644
Binary files a/ui/public/fake_api/part1_240.mp4 and b/ui/public/fake_api/part1_240.mp4 differ
diff --git a/ui/public/fake_api/part2_240.mp4 b/ui/public/fake_api/part2_240.mp4
index 3825919..3469eff 100644
Binary files a/ui/public/fake_api/part2_240.mp4 and b/ui/public/fake_api/part2_240.mp4 differ
diff --git a/ui/public/fake_api/part2_360.mp4 b/ui/public/fake_api/part2_360.mp4
index c2f93be..37ca7b9 100644
Binary files a/ui/public/fake_api/part2_360.mp4 and b/ui/public/fake_api/part2_360.mp4 differ
diff --git a/ui/public/fake_api/part2_480.mp4 b/ui/public/fake_api/part2_480.mp4
index 55a42d2..00b72fd 100644
Binary files a/ui/public/fake_api/part2_480.mp4 and b/ui/public/fake_api/part2_480.mp4 differ
diff --git a/ui/public/fake_api/resize b/ui/public/fake_api/resize
new file mode 100755
index 0000000..0b0e13f
--- /dev/null
+++ b/ui/public/fake_api/resize
@@ -0,0 +1,32 @@
+#!/bin/bash
+
+# complain if no input file given
+if [ $# -lt 1 ]; then
+    >&2 echo "usage: $0 <input_file>"
+    exit 1
+fi
+
+# get input video name
+input="${1}"
+shift 1
+
+# without file extension
+output_base="${input%.*}"
+
+# common video resolutions
+heights=(240 360 480)
+widths=(426 640 854)
+
+# just a quick-and-dirty loop
+for index in $(seq 0 2); do
+    height="${heights[$index]}"
+    width="${widths[$index]}"
+
+    # actual conversion
+    ffmpeg -i "${input}" \
+        -acodec aac -vcodec h264 \
+        -vf "scale=w=${width}:h=${height}:force_original_aspect_ratio=decrease,pad=${width}:${height}:(ow-iw)/2:(oh-ih)/2" \
+        "${output_base}_${height}.mp4"
+done
+
+exit 0