[Doom9]

private void suggestResolution_CheckedChanged(object sender, System.EventArgs e)
		{
			if (suggestResolution.Checked)
			{
				verticalResolution.Value = (decimal)VideoUtil.suggestResolution(reader.Height, Double.Parse(customDAR.Text)
			}
		}

is not valid code.. suggestResolution takes 4 arguments. and there's no getAspectRatio method either in the code I got from the post above.