diff --git a/design/playback_controller.sv b/design/playback_controller.sv
index 0b4aae8..c7c2d3e 100644
--- a/design/playback_controller.sv
+++ b/design/playback_controller.sv
@@ -9,6 +9,8 @@
  *
  * */
 
+//VERILATOR define used here because verilator needs it to find the package
+//while vivado is smart enough not to.
 `ifdef VERILATOR
     `include "sdvd_defs.sv"
 `endif
@@ -35,7 +37,6 @@ state_t current, next;
 
 wire play_pulse,ff_pulse;
 
-// NOTE: These might need to be hooked to an even lower clock? Not sure
 debouncer playDebouncer (clk,reset,play,play_pulse);
 debouncer ffDebouncer (clk,reset,ff,ff_pulse);