diff --git a/README.md b/README.md
index 9c01efe9..e1d97726 100644
--- a/README.md
+++ b/README.md
@@ -22,10 +22,6 @@ this is a work-in-progress chiptune tracker compatible with DefleMask modules (.
   - Philips SAA1099
   - Amiga
   - TIA (Atari 2600/7800)
-  - Yamaha YM2413 (including VRC7)
-  - Atari Lynx
-  - QSound
-  - PC Speaker
 - multiple sound chips in a single song!
 - clean-room design (guesswork and ABX tests only, no decompilation involved)
 - bug/quirk implementation for increased playback accuracy