diff -urN a/2ff b/2ff
--- a/2ff	2016-07-14 08:52:19.267050805 +0200
+++ b/2ff	2016-07-14 08:51:15.987050535 +0200
@@ -12,6 +12,7 @@
 case "$FORMAT" in
     image/png)  png2ff < $TMP; ret=$? ;;
     image/jpeg) jpg2ff < $TMP; ret=$? ;;
+    application/x-bzip2) bzip2 -cd < $TMP; ret=$? ;;
     *) convert $TMP png:- 2>/dev/null | png2ff 2>/dev/null; ret=$? ;;
 esac