Kutted stream show same playing time that the whole source.
Can you check it?

Explain that in more details, please

-kwag

I took a menu 4:3 vob that had more than 1 menu, main menu, chapters menu, etc.
As I don't know how to use that menu I thought to cut it and use it individually.
So I Kutted it.
The whole vob had about 4 min, the Kutted one 41 sec. but when played it shows 4 min, so when it is demultiplexed by DVDAuthor, mpv is still showed with 4 min in bsplayer, mplayer classic, tmpgenc mpeg tools.
When plays in bsplayer or media player classic don't show nothing.
Only vlc and PowerDVD play it fine, PowerDVD shows its correct time, vlc don't show playing time.
Audio has 41 sec.

Drag the cutted VOB into Vdub, and look at the information. The correct time should be displayed there.

-kwag

.
A mpv ES does not have a "length" info given in its header as mpeg was meant to be a streaming format. So maybe the "same" lenght as before could cause due that MPC ect. do recognise the audio (via same filename) which belongs to the video mpv and so they dump it and do show the audiolength!
Thats what MPC does for example.