diff --git a/TODO b/TODO
index 927c2c648..4902f22cb 100644
--- a/TODO
+++ b/TODO
@@ -1,4 +1,8 @@
 
+* implement WMA (generally A_MS/ACM for unknown audio tracks from AVIs)
+
+* precise durations for FLAC and TTA blocks
+
 * allow other timecode scale resolutions for audio-only files
 
 * write mkvedit (like add attachments, add chapters, change language tag...)