DVD seek broken
since commit [5c68bdc5ff7041ca986fa59c3c5c6c042dba2dc4] 0.9-bugfix break dvd seeking
Partially work around a picture link in libmpeg2.
It makes DVD (menu) usable (at least [#1784](https://code.videolan.org/videolan/vlc/-/issues/1784), [#1880](https://code.videolan.org/videolan/vlc/-/issues/1880)).