diff --git a/src/uk/co/majenko/audiobookrecorder/AudiobookRecorder.java b/src/uk/co/majenko/audiobookrecorder/AudiobookRecorder.java
index fdccf6a..520dcbc 100644
--- a/src/uk/co/majenko/audiobookrecorder/AudiobookRecorder.java
+++ b/src/uk/co/majenko/audiobookrecorder/AudiobookRecorder.java
@@ -1365,6 +1365,7 @@ public class AudiobookRecorder extends JFrame {
 
         if (s.startRecording()) {
             recording = (Sentence)selectedNode;
+            System.err.println("Starting flash");
             centralPanel.setFlash(true);
         }
     }
@@ -1414,6 +1415,7 @@ public class AudiobookRecorder extends JFrame {
 
         if (s.startRecording()) {
             recording = s;
+            System.err.println("Starting flash");
             centralPanel.setFlash(true);
         }
     }
@@ -1464,6 +1466,7 @@ public class AudiobookRecorder extends JFrame {
 
         if (s.startRecording()) {
             recording = s;
+            System.err.println("Starting flash");
             centralPanel.setFlash(true);
         }
     }
@@ -1513,6 +1516,7 @@ public class AudiobookRecorder extends JFrame {
 
         if (s.startRecording()) {
             recording = s;
+            System.err.println("Starting flash");
             centralPanel.setFlash(true);
         }
     }
@@ -1562,23 +1566,29 @@ public class AudiobookRecorder extends JFrame {
 
         if (s.startRecording()) {
             recording = s;
+            System.err.println("Starting flash");
             centralPanel.setFlash(true);
         }
     }
 
     public void stopRecording() {
+        System.err.println("Record stop requested");
         if (recording == null) return;
         recording.stopRecording();
 
+        System.err.println("Reloading model");
         bookTreeModel.reload(book);
 
         bookTree.expandPath(new TreePath(((DefaultMutableTreeNode)recording.getParent()).getPath()));
         bookTree.setSelectionPath(new TreePath(recording.getPath()));
         bookTree.scrollPathToVisible(new TreePath(recording.getPath()));
 
+        System.err.println("Stopping flash");
         centralPanel.setFlash(false);
         recording = null;
+        System.err.println("Saving book");
         saveBookStructure();
+        System.err.println("Stop request complete");
     }
 
     public void deleteLastRecording() {
diff --git a/src/uk/co/majenko/audiobookrecorder/Sentence.java b/src/uk/co/majenko/audiobookrecorder/Sentence.java
index d636d3f..7b940cb 100644
--- a/src/uk/co/majenko/audiobookrecorder/Sentence.java
+++ b/src/uk/co/majenko/audiobookrecorder/Sentence.java
@@ -94,7 +94,7 @@ public class Sentence extends DefaultMutableTreeNode implements Cacheable {
             try {
                 running = true;
                 recording = true;
-                byte[] buf = new byte[AudiobookRecorder.window.microphone.getBufferSize()];
+                byte[] buf = new byte[1024]; //AudiobookRecorder.window.microphone.getBufferSize()];
                 FileOutputStream fos = new FileOutputStream(tempFile);
                 int len = 0;
                 AudiobookRecorder.window.microphone.flush();
@@ -155,24 +155,31 @@ public class Sentence extends DefaultMutableTreeNode implements Cacheable {
     }
 
     public boolean startRecording() {
+        System.err.println("Starting record");
         if (AudiobookRecorder.window.microphone == null) {
             JOptionPane.showMessageDialog(AudiobookRecorder.window, "Microphone not started. Start the microphone first.", "Error", JOptionPane.ERROR_MESSAGE);
             return false;
         }
 
+        System.err.println("Removing object from cache");
         CacheManager.removeFromCache(this);
 
+        System.err.println("Creating record thread");
         recordingThread = new RecordingThread(getTempFile(), getFile(), Options.getAudioFormat());
 
+        System.err.println("Starting record thread");
         Thread rc = new Thread(recordingThread);
         rc.setDaemon(true);
         rc.start();
+        System.err.println("Recording started");
 
         return true;
     }
 
     public void stopRecording() {
+        System.err.println("Stopping recording...");
         recordingThread.stopRecording();
+        System.err.println("Waiting for stop to complete...");
         while (recordingThread.isRunning()) {
             try {
                 Thread.sleep(10);
@@ -181,11 +188,14 @@ public class Sentence extends DefaultMutableTreeNode implements Cacheable {
             }
         }
 
+        System.err.println("Removing object from cache...");
+
         CacheManager.removeFromCache(this);
 
         audioData = null;
         processedAudio = null;
 
+        System.err.println("Running trim and recognition...");
         if (!id.equals("room-noise")) {
             String tm = Options.get("audio.recording.trim");
             if (tm.equals("peak")) {
@@ -197,6 +207,7 @@ public class Sentence extends DefaultMutableTreeNode implements Cacheable {
                 recognise();
             }
         }
+        System.err.println("Recording stop complete");
     }
 
     public static final int FFTBuckets = 1024;