diff --git a/podcasts/scripts/make-all-podcasts.pl b/podcasts/scripts/make-all-podcasts.pl
index 2af0479..6aaf98c 100755
--- a/podcasts/scripts/make-all-podcasts.pl
+++ b/podcasts/scripts/make-all-podcasts.pl
@@ -197,6 +197,40 @@ sub process {
 					return 0;
 				}
 			}
+
+			# generate .size
+			my $command = "du -b $target_name |awk '{print $1}' > $target_name.size";
+			if($dryrun) {
+				print "$command\n";
+			} else {
+				my @ret = `$command`;
+				if($?) {
+					print "Error while generation size of $target_name\n";
+					if($verbose) {
+						print Dumper @ret;
+						print Dumper $data;
+					}
+					return 0;
+				}
+			}
+
+         # generate duration
+#			my $command = "ffprobe $target_name -show_entries format=duration -sexagesimal 2> /dev/null |grep duration |sed '1,\$s/duration=//' > $target_name.duration";
+			my $command = "mediainfo --Inform='General;%Duration/String3%' $target_name > $target_name.duration";
+			if($dryrun) {
+				print "$command\n";
+			} else {
+				my @ret = `$command`;
+				if($?) {
+					print "Error while generation duration of $target_name\n";
+					if($verbose) {
+						print Dumper @ret;
+						print Dumper $data;
+					}
+					return 0;
+				}
+			}
+
 		}
 
 	}