J. Bakshi (জ. বকসী <j.bakshi <at> unlimitedmail.org> writes: > following fix the issue > > ffmpeg -i "concat:VTS_01_1.VOB|VTS_01_2.VOB" -f mpeg -c copy output.mpeg Did you also test the following? $ cat VTS_01_1.VOB VTS_01_2.VOB > output2.mpeg Carl Eugen