Problems with libdvdnav

Hi all, since last friday i had problems with unencrypted DVD
reproduction (encrypted DVD works fine) and with some DVDs i used to
play. When I open the VIDEO_TS folder i could see the files and play
the VOB files without problem, but when i play with totem-xine or xine
itself I had this errors:

libdvdnav: Using dvdnav version 1.1.16.2 from http://xine.sf.net
libdvdread: Using libdvdcss version 1.2.10 for DVD access
libdvdnav: DVD Title:
libdvdnav: DVD Serial Number:
libdvdnav: DVD Title (Alternative):
libdvdnav: Unable to find map file '/home/.../.dvdnav/.map'
libdvdnav:DVDOpenFileUDF:UDFFindFile /VIDEO_TS/VIDEO_TS.IFO failed
libdvdnav:DVDOpenFileUDF:UDFFindFile /VIDEO_TS/VIDEO_TS.BUP failed
libdvdread: Can't open file VIDEO_TS.IFO.
libdvdnav: vm: faild to read VIDEO_TS.IFO


And in a dialog, totem says that i try to play an encrypted DVD without libcss,

I use debian testing.

Thanks,
Guillermo

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