diff --git a/BizHawk.Client.EmuHawk/AVOut/VideoWriterChooserForm.cs b/BizHawk.Client.EmuHawk/AVOut/VideoWriterChooserForm.cs
index b1b2c4d8b2..1cb1a882c3 100644
--- a/BizHawk.Client.EmuHawk/AVOut/VideoWriterChooserForm.cs
+++ b/BizHawk.Client.EmuHawk/AVOut/VideoWriterChooserForm.cs
@@ -12,14 +12,20 @@ namespace BizHawk.Client.EmuHawk
 	/// </summary>
 	public partial class VideoWriterChooserForm : Form
 	{
-		private readonly int _captureWidth, _captureHeight;
+		private readonly int _captureWidth = 640;
+		private readonly int _captureHeight = 480;
 
 		private VideoWriterChooserForm(MainForm mainForm, IEmulator emulator, Config config)
 		{
 			InitializeComponent();
 
-			_captureWidth = emulator.CoreComm.NominalWidth;
-			_captureHeight = emulator.CoreComm.NominalHeight;
+			// TODO: do we want to use virtual w/h?
+			if (emulator.HasVideoProvider())
+			{
+				var videoProvider = emulator.AsVideoProvider();
+				_captureWidth = videoProvider.BufferWidth;
+				_captureHeight = videoProvider.BufferHeight;
+			}
 
 			if (config.AviCaptureOsd)
 			{
diff --git a/BizHawk.Emulation.Common/CoreComms.cs b/BizHawk.Emulation.Common/CoreComms.cs
index 9a4a3a56a4..3583327722 100644
--- a/BizHawk.Emulation.Common/CoreComms.cs
+++ b/BizHawk.Emulation.Common/CoreComms.cs
@@ -25,10 +25,6 @@ namespace BizHawk.Emulation.Common
 		public string RomStatusAnnotation { get; set; }
 		public string RomStatusDetails { get; set; }
 
-		// size hint to a/v out resizer.  this probably belongs in VideoProvider?  but it's somewhat different than VirtualWidth...
-		public int NominalWidth { get; set; } = 640;
-		public int NominalHeight { get; set; } = 480;
-
 		/// <summary>
 		/// Gets a message to show. reasonably annoying (dialog box), shouldn't be used most of the time
 		/// </summary>
diff --git a/BizHawk.Emulation.Cores/Consoles/Nintendo/GBA/MGBAHawk.cs b/BizHawk.Emulation.Cores/Consoles/Nintendo/GBA/MGBAHawk.cs
index 5e1fd50329..f000310679 100644
--- a/BizHawk.Emulation.Cores/Consoles/Nintendo/GBA/MGBAHawk.cs
+++ b/BizHawk.Emulation.Cores/Consoles/Nintendo/GBA/MGBAHawk.cs
@@ -53,8 +53,6 @@ namespace BizHawk.Emulation.Cores.Nintendo.GBA
 
 				ServiceProvider = ser;
 				CoreComm = comm;
-				CoreComm.NominalWidth = 240;
-				CoreComm.NominalHeight = 160;
 				PutSettings(_settings);
 
 				_tracer = new TraceBuffer
diff --git a/BizHawk.Emulation.Cores/Consoles/Nintendo/GBA/VBANext.cs b/BizHawk.Emulation.Cores/Consoles/Nintendo/GBA/VBANext.cs
index dff975142e..2ca2657c63 100644
--- a/BizHawk.Emulation.Cores/Consoles/Nintendo/GBA/VBANext.cs
+++ b/BizHawk.Emulation.Cores/Consoles/Nintendo/GBA/VBANext.cs
@@ -69,9 +69,6 @@ namespace BizHawk.Emulation.Cores.Nintendo.GBA
 				};
 				ser.Register<ITraceable>(Tracer);
 
-				CoreComm.NominalWidth = 240;
-				CoreComm.NominalHeight = 160;
-
 				GameCode = Encoding.ASCII.GetString(file, 0xac, 4);
 				Console.WriteLine("Game code \"{0}\"", GameCode);
 
diff --git a/BizHawk.Emulation.Cores/Consoles/Nintendo/Gameboy/Gambatte.cs b/BizHawk.Emulation.Cores/Consoles/Nintendo/Gameboy/Gambatte.cs
index 52bc80cb98..141e9cd76c 100644
--- a/BizHawk.Emulation.Cores/Consoles/Nintendo/Gameboy/Gambatte.cs
+++ b/BizHawk.Emulation.Cores/Consoles/Nintendo/Gameboy/Gambatte.cs
@@ -36,9 +36,6 @@ namespace BizHawk.Emulation.Cores.Nintendo.Gameboy
 			InitMemoryCallbacks();
 			CoreComm = comm;
 
-			comm.NominalWidth = 160;
-			comm.NominalHeight = 144;
-
 			ThrowExceptionForBadRom(file);
 			BoardName = MapperName(file);
 
diff --git a/BizHawk.Emulation.Cores/Consoles/Nintendo/Gameboy/GambatteLink.cs b/BizHawk.Emulation.Cores/Consoles/Nintendo/Gameboy/GambatteLink.cs
index 7d08326ccd..7d9f89b527 100644
--- a/BizHawk.Emulation.Cores/Consoles/Nintendo/Gameboy/GambatteLink.cs
+++ b/BizHawk.Emulation.Cores/Consoles/Nintendo/Gameboy/GambatteLink.cs
@@ -31,8 +31,6 @@ namespace BizHawk.Emulation.Cores.Nintendo.Gameboy
 			R.ConnectMemoryCallbackSystem(_memorycallbacks);
 
 			comm.RomStatusDetails = "LEFT:\r\n" + L.CoreComm.RomStatusDetails + "RIGHT:\r\n" + R.CoreComm.RomStatusDetails;
-			comm.NominalWidth = L.CoreComm.NominalWidth + R.CoreComm.NominalWidth;
-			comm.NominalHeight = L.CoreComm.NominalHeight;
 
 			LinkConnected = true;