diff --git a/.config/lf/lfrc b/.config/lf/lfrc
index f07b8d4..13c46eb 100644
--- a/.config/lf/lfrc
+++ b/.config/lf/lfrc
@@ -22,6 +22,9 @@ cmd open ${{
 	audio/*) mpv --audio-display=no $f ;;
 	video/*) setsid mpv $f -quiet >/dev/null 2>&1 & ;;
 	application/pdf) setsid zathura $fx >/dev/null 2>&1 & ;;
+	application/epub+zip) setsid zathura $fx >/dev/null 2>&1 & ;;
+	application/vnd.comicbook+zip) setsid zathura $fx >/dev/null 2>&1 & ;;
+	application/vnd.comicbook-rar) setsid zathura $fx >/dev/null 2>&1 & ;;
         *) for f in $fx; do setsid $OPENER $f >/dev/null 2>&1 & done;;
     esac
 }}
diff --git a/.local/bin/booksplit b/.local/bin/booksplit
index 0029d0b..3d0ab07 100755
--- a/.local/bin/booksplit
+++ b/.local/bin/booksplit
@@ -39,6 +39,6 @@ do
 done < "$2"
 # The last track must be done outside the loop.
 echo "From $start to the end: $title"
-file="$escbook/$track-$esctitle.$ext"
+file="$escbook/$(printf "%.2d" "$track")-$esctitle.$ext"
 echo "Splitting \"$title\"..." && ffmpeg -nostdin -y -loglevel -8 -i "$inputaudio" -ss "$start" -vn "$file" &&
 		echo "Tagging \"$title\"..." && tag -a "$author" -A "$booktitle" -t "$title" -n "$track" -N "$total" -d "$year" "$file"