diff --git a/restreamer/restreamer/main.py b/restreamer/restreamer/main.py
index 8ec8060..22c00b2 100644
--- a/restreamer/restreamer/main.py
+++ b/restreamer/restreamer/main.py
@@ -280,6 +280,8 @@ def cut(channel, quality):
 	if type == 'fast':
 		return Response(fast_cut_segments(segments, start, end), mimetype='video/MP2T')
 	elif type in ('mpegts', 'mp4'):
+		if type == 'mp4':
+			return "mp4 type has been disabled due to the load it causes", 400
 		# encode as high-quality, without wasting too much cpu on encoding
 		stream, muxer, mimetype = (True, 'mpegts', 'video/MP2T') if type == 'mpegts' else (False, 'mp4', 'video/mp4')
 		encoding_args = ['-c:v', 'libx264', '-preset', 'ultrafast', '-crf', '0', '-f', muxer]
diff --git a/thrimbletrimmer/index.html b/thrimbletrimmer/index.html
index 3e23753..bc29e04 100644
--- a/thrimbletrimmer/index.html
+++ b/thrimbletrimmer/index.html
@@ -108,7 +108,6 @@
 				<option value="rough" selected>Rough (fastest, pads start and end by a few seconds)</option>
 				<option value="fast">Fast (may have artifacts a few seconds in from start and end)</option>
 				<option value="mpegts">MPEG-TS (slow, consumes server resources)</option>
-				<option value="mp4">MP4 (slower, consumes server resources, output is MP4 file)</option>
 			</select>
         </div>
         <div id="ManualLinkPane" style="display:none">