See, http://bugs.gentoo.org/show_bug.cgi?id=233113

lsdvd always reads the infos for all titles (even if only a single title was
selected with "-t") and bails out if there is an error.

Now, if for example title 5 is unreadable but you're interested in title 1, you
should be able to get the info by using "-t 1", but that doesn't work, as lsdvd
errors out before even starting the output because it can't read title 5.

To solve this my patch makes lsdvd ignore read errors in titles it wouldn't
display anyway.

Patch by Martin Thierer

diff -uw lsdvd-0.16.orig/lsdvd.c lsdvd-0.16/lsdvd.c
--- lsdvd-0.16.orig/lsdvd.c	2006-03-02 14:48:11.000000000 +0100
+++ lsdvd-0.16/lsdvd.c	2008-07-27 20:11:55.000000000 +0200
@@ -292,7 +292,7 @@
 
 	for (i=1; i <= ifo_zero->vts_atrt->nr_of_vtss; i++) {
 		ifo[i] = ifoOpen(dvd, i);
-		if ( !ifo[i] ) {
+		if ( !ifo[i] && opt_t == i ) {
 			fprintf( stderr, "Can't open ifo %d!\n", i);
 			return 4;
 		}