Hello. I tried to transcode one of my dvds to h264 and noticed something which seems weird to me. If i choose the AC3 5.1 audio the movie is 6078 seconds long, while if i choose the DTS 5.1 audio the length is 5971 seconds. Despite the 2min difference, the movie seems whole. Is this normal ? Title Info ---------- Playing dvd://1. There are 6 titles on this DVD. There are 1 angles in this DVD title. audio stream: 0 format: ac3 (5.1) language: en aid: 128. audio stream: 1 format: dts (5.1) language: en aid: 137. audio stream: 2 format: ac3 (stereo) language: en aid: 130. audio stream: 3 format: ac3 (stereo) language: en aid: 131. audio stream: 4 format: ac3 (stereo) language: en aid: 132. audio stream: 5 format: ac3 (stereo) language: en aid: 133. audio stream: 6 format: ac3 (stereo) language: en aid: 134. number of audio channels on disk: 7. subtitle ( sid ): 4 language: en subtitle ( sid ): 5 language: el subtitle ( sid ): 6 language: en number of subtitles on disk: 3 AC3 output ("mencoder dvd://1 -oac copy -ovc copy -aid 128") ---------- Video stream: 5927.506 kbit/s (740938 B/s) size: 4503956538 bytes 6078.720 secs 151971 frames Audio stream: 448.000 kbit/s (55999 B/s) size: 340356352 bytes 6077.792 secs DTS output ("mencoder dvd://1 -oac copy -ovc copy -aid 137") ---------- Video stream: 5926.731 kbit/s (740841 B/s) size: 4424245234 bytes 5971.920 secs 151971 frames Audio stream: 768.000 kbit/s (95999 B/s) size: 573211758 bytes 5970.956 secs Also, i see in the mencoder output a "Skipping frame!" message every almost 2 seconds Is this normal and why it is happening ? Thank you for your time.