diff --git a/v0.5/4-demos/03_stopwatch/O-ESD_demo_03_stopwatch.mp4 b/v0.5/4-demos/03_stopwatch/O-ESD_demo_03_stopwatch.mp4 deleted file mode 100644 index cd28e3a..0000000 Binary files a/v0.5/4-demos/03_stopwatch/O-ESD_demo_03_stopwatch.mp4 and /dev/null differ