diff --git a/internal/testers/http_streamer.go b/internal/testers/http_streamer.go
index e2b3e775..b1c6f055 100644
--- a/internal/testers/http_streamer.go
+++ b/internal/testers/http_streamer.go
@@ -225,6 +225,9 @@ func (hs *httpStreamer) pushSegment(httpURL, manifestID string, seg *hlsSegment)
 				hs.mu.Lock()
 				hs.dstats.errors["Video parsing error"] = hs.dstats.errors["Video parsing error"] + 1
 				hs.mu.Unlock()
+				fname := fmt.Sprintf("bad_video_%s_%d_%d", manifestID, seg.seqNo, i)
+				ioutil.WriteFile(fname, tseg, 0644)
+				glog.Infof("Wrote bad segment to '%s'", fname)
 				glog.Infof("Data:\n%x", tseg)
 				glog.Infof("Data as string:\n%s", string(tseg))
 				panic(msg)