--- ../dvdauthor-0.6.14-orig/src/dvdvob.c	2007-01-13 08:52:20 +0900
+++ src/dvdvob.c	2007-02-27 10:49:56 +0900
@@ -408,25 +408,33 @@
             vobgroup_set_video_attr(va,VIDEO_RESOLUTION,sizestring);
 
             if( va->vd.vmpeg==VM_MPEG1) {
+                static int warned=0;
                 switch( aspect ) {
                 case 3:
                     vobgroup_set_video_attr(va,VIDEO_ASPECT,"16:9");
                     vobgroup_set_video_attr(va,VIDEO_FORMAT,"pal");
+                    warned=0;
                     break;
                 case 6:
                     vobgroup_set_video_attr(va,VIDEO_ASPECT,"16:9");
                     vobgroup_set_video_attr(va,VIDEO_FORMAT,"ntsc");
+                    warned=0;
                     break;
                 case 8:
                     vobgroup_set_video_attr(va,VIDEO_ASPECT,"4:3");
                     vobgroup_set_video_attr(va,VIDEO_FORMAT,"pal");
+                    warned=0;
                     break;
                 case 12:
                     vobgroup_set_video_attr(va,VIDEO_ASPECT,"4:3");
                     vobgroup_set_video_attr(va,VIDEO_FORMAT,"ntsc");
+                    warned=0;
                     break;
                 default:
-                    fprintf(stderr,"WARN: unknown mpeg1 aspect ratio %d\n",aspect);
+                    if( !warned ) {
+                        fprintf(stderr,"WARN: unknown mpeg1 aspect ratio %d\n",aspect);
+                        warned++;
+                    }
                     break;
                 }
                 newaspect=3+
@@ -435,12 +443,19 @@
                 if( newaspect==11 ) newaspect++;
                 buf[7]=(buf[7]&0xf)|(newaspect<<4); // reset the aspect ratio
             } else if( va->vd.vmpeg==VM_MPEG2 ) {
-                if( aspect==2 )
+                static int warned=0;
+                if( aspect==2 ) {
                     vobgroup_set_video_attr(va,VIDEO_ASPECT,"4:3");
-                else if( aspect==3 )
+                    warned=0;
+                } else if( aspect==3 ) {
                     vobgroup_set_video_attr(va,VIDEO_ASPECT,"16:9");
-                else
-                    fprintf(stderr,"WARN: unknown mpeg2 aspect ratio %d\n",aspect);
+                    warned=0;
+                } else {
+                    if( !warned ) {
+                        fprintf(stderr,"WARN: unknown mpeg2 aspect ratio %d\n",aspect);
+                        warned++;
+                    }
+                }
                 buf[7]=(buf[7]&0xf)|(va->vd.vaspect==VA_4x3?2:3)<<4; // reset the aspect ratio
             }
             break;