Hi, I just ran into the same error:
$ totem dvd:// ** Message: no file info No accelerated IMDCT transform found libdvdnav: Using dvdnav version 4.1.3 libdvdnav: DVD Title: BLACK_SYMPHONY_DVD1 libdvdnav: DVD Serial Number: 10B19C1CAPPLEDSP libdvdnav: DVD Title (Alternative): BLACK_SYMPHONY_DVD1 libdvdnav: Unable to find map file '/home/johannes/.dvdnav/BLACK_SYMPHONY_DVD1.map' libdvdnav: DVD disk reports itself with Region mask 0x00400000. Regions: 1 2 3 4 5 6 8 libdvdnav: Cell is in block but did not enter at first cell! totem: /build/buildd/libdvdnav-4.1.3/src/vm/vm.c:863: vm_get_video_aspect: Assertion `aspect == 0 || aspect == 3' failed. Aborted but on amd64, with both libdvdnav4 and libdvdread4 from experimental (version 4.1.3-1) johannes
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