diff --git a/MA2ME.xcodeproj/project.pbxproj b/MA2ME.xcodeproj/project.pbxproj
index 87789f9..d19dd62 100644
--- a/MA2ME.xcodeproj/project.pbxproj
+++ b/MA2ME.xcodeproj/project.pbxproj
@@ -63,6 +63,8 @@
 		B6BA258224E99BEB005FB8FF /* Assets.xcassets in Resources */ = {isa = PBXBuildFile; fileRef = B6BA258124E99BEB005FB8FF /* Assets.xcassets */; };
 		B6BA258524E99BEB005FB8FF /* MainMenu.xib in Resources */ = {isa = PBXBuildFile; fileRef = B6BA258324E99BEB005FB8FF /* MainMenu.xib */; };
 		B6BA258824E99BEB005FB8FF /* main.m in Sources */ = {isa = PBXBuildFile; fileRef = B6BA258724E99BEB005FB8FF /* main.m */; };
+		B6D6DE3924FAC8B500661A5F /* Preferences.xib in Resources */ = {isa = PBXBuildFile; fileRef = B6D6DE3724FAC8B500661A5F /* Preferences.xib */; };
+		B6D6DE3B24FACF4F00661A5F /* Defaults.plist in Resources */ = {isa = PBXBuildFile; fileRef = B6D6DE3A24FACF4F00661A5F /* Defaults.plist */; };
 /* End PBXBuildFile section */
 
 /* Begin PBXFileReference section */
@@ -133,6 +135,8 @@
 		B6BA258624E99BEB005FB8FF /* Info.plist */ = {isa = PBXFileReference; lastKnownFileType = text.plist.xml; path = Info.plist; sourceTree = "<group>"; };
 		B6BA258724E99BEB005FB8FF /* main.m */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.c.objc; path = main.m; sourceTree = "<group>"; };
 		B6BA258924E99BEB005FB8FF /* MA2ME.entitlements */ = {isa = PBXFileReference; lastKnownFileType = text.plist.entitlements; path = MA2ME.entitlements; sourceTree = "<group>"; };
+		B6D6DE3824FAC8B500661A5F /* Base */ = {isa = PBXFileReference; lastKnownFileType = file.xib; name = Base; path = Base.lproj/Preferences.xib; sourceTree = "<group>"; };
+		B6D6DE3A24FACF4F00661A5F /* Defaults.plist */ = {isa = PBXFileReference; lastKnownFileType = text.plist.xml; path = Defaults.plist; sourceTree = "<group>"; };
 /* End PBXFileReference section */
 
 /* Begin PBXFrameworksBuildPhase section */
@@ -242,9 +246,11 @@
 				B64E15AB24EA1FD400E8AD3D /* SlotBrowserDelegate.m */,
 				B64E15AF24EA365E00E8AD3D /* Resources */,
 				B6BA258624E99BEB005FB8FF /* Info.plist */,
+				B6D6DE3A24FACF4F00661A5F /* Defaults.plist */,
 				B6BA258724E99BEB005FB8FF /* main.m */,
 				B6BA258924E99BEB005FB8FF /* MA2ME.entitlements */,
 				B6BA258324E99BEB005FB8FF /* MainMenu.xib */,
+				B6D6DE3724FAC8B500661A5F /* Preferences.xib */,
 				B61099E524F5F230005CB652 /* MediaView.xib */,
 				B61099E324F5F230005CB652 /* SlotView.xib */,
 			);
@@ -343,6 +349,7 @@
 				B6109A4324F5F377005CB652 /* agat7.plist in Resources */,
 				B6109A2B24F5F377005CB652 /* elppa.plist in Resources */,
 				B6109A3B24F5F377005CB652 /* apple2gsr1.plist in Resources */,
+				B6D6DE3B24FACF4F00661A5F /* Defaults.plist in Resources */,
 				B6109A2224F5F377005CB652 /* models.plist in Resources */,
 				B6109A4024F5F377005CB652 /* craft2p.plist in Resources */,
 				B6109A1B24F5F377005CB652 /* uniap2pt.plist in Resources */,
@@ -352,6 +359,7 @@
 				B6109A2A24F5F377005CB652 /* apple3.plist in Resources */,
 				B6109A2124F5F377005CB652 /* apple2ee.plist in Resources */,
 				B6109A3624F5F377005CB652 /* dodo.plist in Resources */,
+				B6D6DE3924FAC8B500661A5F /* Preferences.xib in Resources */,
 				B61099E724F5F231005CB652 /* SlotView.xib in Resources */,
 				B6109A2924F5F377005CB652 /* apple2gs.plist in Resources */,
 				B6109A1F24F5F377005CB652 /* apple2jp.plist in Resources */,
@@ -404,6 +412,14 @@
 			name = MainMenu.xib;
 			sourceTree = "<group>";
 		};
+		B6D6DE3724FAC8B500661A5F /* Preferences.xib */ = {
+			isa = PBXVariantGroup;
+			children = (
+				B6D6DE3824FAC8B500661A5F /* Base */,
+			);
+			name = Preferences.xib;
+			sourceTree = "<group>";
+		};
 /* End PBXVariantGroup section */
 
 /* Begin XCBuildConfiguration section */
diff --git a/MA2ME/AppDelegate.h b/MA2ME/AppDelegate.h
index e613254..6483083 100644
--- a/MA2ME/AppDelegate.h
+++ b/MA2ME/AppDelegate.h
@@ -10,6 +10,7 @@
 
 @interface AppDelegate : NSObject <NSApplicationDelegate, NSBrowserDelegate>
 
+- (IBAction)displayPreferences:(id)sender;
 
 @end
 
diff --git a/MA2ME/AppDelegate.m b/MA2ME/AppDelegate.m
index 81c580d..25cc7b8 100644
--- a/MA2ME/AppDelegate.m
+++ b/MA2ME/AppDelegate.m
@@ -34,18 +34,34 @@
 @property NSArray *browserItems;
 @end
 
-@implementation AppDelegate
+@implementation AppDelegate {
+    NSWindowController *_prefs;
+}
 
 static NSString *kMyContext = @"kMyContext";
 
 - (void)applicationDidFinishLaunching:(NSNotification *)aNotification {
     // Insert code here to initialize your application
 
+    NSBundle *bundle = [NSBundle mainBundle];
+    NSString *path;
+    NSDictionary *dict;
+    
+    
+    path = [bundle pathForResource: @"Defaults" ofType: @"plist"];
+    dict = [NSDictionary dictionaryWithContentsOfFile: path];
+    
+    if (dict)
+    {
+        [[NSUserDefaults standardUserDefaults] registerDefaults: dict];
+    }
+    
+    
     
     /* My Copy of XCode/Interface Builder barfs on NSBrowser. */
     
-    NSBundle *bundle = [NSBundle mainBundle];
-    NSString *path = [bundle pathForResource: @"models" ofType: @"plist"];
+
+    path = [bundle pathForResource: @"models" ofType: @"plist"];
     _browserItems = [NSArray arrayWithContentsOfFile: path];
     
     NSView *view = [_window contentView];
@@ -332,8 +348,13 @@ static NSString * JoinArguments(NSArray *argv) {
 - (IBAction)launchAction:(id)sender {
     if (![_args count]) return;
     
+    NSUserDefaults *defaults = [NSUserDefaults standardUserDefaults];
+    
+    NSString *path = [defaults stringForKey: @"MamePath"];
+    if (![path length]) path = @"/usr/local/bin/mame";
+    
     NSError *error = nil;
-    NSURL *url = [NSURL fileURLWithPath: @"/usr/local/bin/mame"];
+    NSURL *url = [NSURL fileURLWithPath: path];
     
     NSTask *task = [NSTask launchedTaskWithExecutableURL: url
                                                arguments: _args
@@ -347,6 +368,12 @@ static NSString * JoinArguments(NSArray *argv) {
     if (error) NSLog(@"launchAction: %@", error);
 }
 
+- (IBAction)displayPreferences:(id)sender {
+    if (!_prefs) {
+        _prefs = [[NSWindowController alloc] initWithWindowNibName: @"Preferences"];
+    }
+    [_prefs showWindow: sender];
+}
 
 
 @end
diff --git a/MA2ME/Base.lproj/MainMenu.xib b/MA2ME/Base.lproj/MainMenu.xib
index ae31839..8e9c763 100644
--- a/MA2ME/Base.lproj/MainMenu.xib
+++ b/MA2ME/Base.lproj/MainMenu.xib
@@ -37,7 +37,11 @@
                                 </connections>
                             </menuItem>
                             <menuItem isSeparatorItem="YES" id="VOq-y0-SEH"/>
-                            <menuItem title="Preferences…" keyEquivalent="," id="BOF-NM-1cW"/>
+                            <menuItem title="Preferences…" keyEquivalent="," id="BOF-NM-1cW">
+                                <connections>
+                                    <action selector="displayPreferences:" target="Voe-Tx-rLC" id="Hsm-pX-sUc"/>
+                                </connections>
+                            </menuItem>
                             <menuItem isSeparatorItem="YES" id="wFC-TO-SCJ"/>
                             <menuItem title="Services" id="NMo-om-nkz">
                                 <modifierMask key="keyEquivalentModifierMask"/>
@@ -774,6 +778,14 @@
                         <rect key="frame" x="392" y="169" width="306" height="570"/>
                         <autoresizingMask key="autoresizingMask" flexibleMinX="YES" flexibleMinY="YES"/>
                     </customView>
+                    <button verticalHuggingPriority="750" fixedFrame="YES" translatesAutoresizingMaskIntoConstraints="NO" id="XMQ-jr-w2i">
+                        <rect key="frame" x="261" y="102" width="67" height="18"/>
+                        <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMinY="YES"/>
+                        <buttonCell key="cell" type="check" title="No Blur" bezelStyle="regularSquare" imagePosition="left" state="on" inset="2" id="Xxl-Eu-ziO">
+                            <behavior key="behavior" changeContents="YES" doesNotDimImage="YES" lightByContents="YES"/>
+                            <font key="font" metaFont="system"/>
+                        </buttonCell>
+                    </button>
                 </subviews>
             </view>
             <point key="canvasLocation" x="769" y="196.5"/>
@@ -782,6 +794,6 @@
         <viewController title="Media View" nibName="MediaView" id="kiU-IX-LTW" customClass="MediaViewController"/>
     </objects>
     <resources>
-        <image name="NSAppleMenuImage" width="128" height="128"/>
+        <image name="NSAppleMenuImage" width="11" height="14"/>
     </resources>
 </document>
diff --git a/MA2ME/Base.lproj/Preferences.xib b/MA2ME/Base.lproj/Preferences.xib
new file mode 100644
index 0000000..dfe9078
--- /dev/null
+++ b/MA2ME/Base.lproj/Preferences.xib
@@ -0,0 +1,53 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<document type="com.apple.InterfaceBuilder3.Cocoa.XIB" version="3.0" toolsVersion="15705" targetRuntime="MacOSX.Cocoa" propertyAccessControl="none" useAutolayout="YES" customObjectInstantitationMethod="direct">
+    <dependencies>
+        <deployment identifier="macosx"/>
+        <plugIn identifier="com.apple.InterfaceBuilder.CocoaPlugin" version="15705"/>
+        <capability name="documents saved in the Xcode 8 format" minToolsVersion="8.0"/>
+    </dependencies>
+    <objects>
+        <customObject id="-2" userLabel="File's Owner" customClass="NSWindowController">
+            <connections>
+                <outlet property="window" destination="QvC-M9-y7g" id="SHw-b5-d6g"/>
+            </connections>
+        </customObject>
+        <customObject id="-1" userLabel="First Responder" customClass="FirstResponder"/>
+        <customObject id="-3" userLabel="Application" customClass="NSObject"/>
+        <window title="Preferences" allowsToolTipsWhenApplicationIsInactive="NO" autorecalculatesKeyViewLoop="NO" restorable="NO" releasedWhenClosed="NO" visibleAtLaunch="NO" animationBehavior="default" id="QvC-M9-y7g">
+            <windowStyleMask key="styleMask" titled="YES" closable="YES" miniaturizable="YES"/>
+            <windowPositionMask key="initialPositionMask" leftStrut="YES" rightStrut="YES" topStrut="YES" bottomStrut="YES"/>
+            <rect key="contentRect" x="196" y="240" width="480" height="270"/>
+            <rect key="screenRect" x="0.0" y="0.0" width="2560" height="1417"/>
+            <view key="contentView" wantsLayer="YES" id="EiT-Mj-1SZ">
+                <rect key="frame" x="0.0" y="0.0" width="480" height="270"/>
+                <autoresizingMask key="autoresizingMask"/>
+                <subviews>
+                    <textField verticalHuggingPriority="750" fixedFrame="YES" translatesAutoresizingMaskIntoConstraints="NO" id="Oz5-Xb-btk">
+                        <rect key="frame" x="98" y="229" width="362" height="21"/>
+                        <autoresizingMask key="autoresizingMask" flexibleMinX="YES" widthSizable="YES" flexibleMinY="YES"/>
+                        <textFieldCell key="cell" scrollable="YES" lineBreakMode="clipping" selectable="YES" editable="YES" sendsActionOnEndEditing="YES" borderStyle="bezel" drawsBackground="YES" id="vDR-2V-qxd">
+                            <font key="font" usesAppearanceFont="YES"/>
+                            <color key="textColor" name="controlTextColor" catalog="System" colorSpace="catalog"/>
+                            <color key="backgroundColor" name="textBackgroundColor" catalog="System" colorSpace="catalog"/>
+                        </textFieldCell>
+                        <connections>
+                            <binding destination="yvB-HG-64y" name="value" keyPath="values.MamePath" id="H3O-1l-peo"/>
+                        </connections>
+                    </textField>
+                    <textField horizontalHuggingPriority="251" verticalHuggingPriority="750" fixedFrame="YES" translatesAutoresizingMaskIntoConstraints="NO" id="Qmb-Ag-Xyr">
+                        <rect key="frame" x="18" y="234" width="74" height="16"/>
+                        <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMinY="YES"/>
+                        <textFieldCell key="cell" lineBreakMode="clipping" title="MAME Path" id="Xcq-4g-Wlw">
+                            <font key="font" metaFont="system"/>
+                            <color key="textColor" name="labelColor" catalog="System" colorSpace="catalog"/>
+                            <color key="backgroundColor" name="textBackgroundColor" catalog="System" colorSpace="catalog"/>
+                        </textFieldCell>
+                    </textField>
+                </subviews>
+            </view>
+            <point key="canvasLocation" x="140" y="147"/>
+        </window>
+        <userDefaultsController id="KVS-Ag-1un"/>
+        <userDefaultsController representsSharedInstance="YES" id="yvB-HG-64y"/>
+    </objects>
+</document>
diff --git a/MA2ME/Defaults.plist b/MA2ME/Defaults.plist
new file mode 100644
index 0000000..7282f80
--- /dev/null
+++ b/MA2ME/Defaults.plist
@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>MamePath</key>
+	<string>/usr/local/bin/mame</string>
+</dict>
+</plist>