Confirmed, the libdvdcss2 cause crash in players of audio, video, pictures.
I installed again (for the seventh time) and all the players stop after installation of library and reboot of machine. The curious thing is that before the reboot it works.
I removed the library, reboote and the player returned to service (ufa!! no more installations :-)
The library installed is libdvdcss2-1.2.10-0.2medibuntu1