diff --git a/Audio & Video.md b/Audio & Video.md
index ef1e729..074c279 100644
--- a/Audio & Video.md	
+++ b/Audio & Video.md	
@@ -390,13 +390,13 @@ The individual tile bitmaps are 8x8, 8x16, 16x8, or 16x16 pixel bitmaps, which c
 
 Tilemaps are stored as sequences of two-byte structures. The interpretation of those bytes depends on the settings of the layer.
 
-### 1BPP Tile Mode
+### 1-Bit Tile Mode
 
 In 1bpp tile mode, with the `T256C` flag cleared, the first byte of the map data is an index into the tile data, and the second byte is split into two nybbles, the low-order nybble holding the foreground colour, and the high-order nybble holding the background colour for that tile.
 
 In 1bpp tile mode with the `T256C` flag set, instead the second byte is the foreground colour of the tile, with the background colour being transparent.
 
-### 2/4/8BPP Tile Mode
+### 2-, 4-, and 8-Bit Tile Modes
 
 In other bit depths, tile mode interprets the first byte of the map data is the low-order eight bits of the tile index. The second byte is interpreted as follows: