diff -ruN original/CapturePlayback.java modified/CapturePlayback.java
--- original/CapturePlayback.java	2007-01-18 13:15:04.000000000 +0400
+++ modified/CapturePlayback.java	2009-07-12 00:19:56.000000000 +0400
@@ -138,6 +138,7 @@
                 samplingGraph.start();
                 captB.setEnabled(false);
                 pausB.setEnabled(true);
+                pausB.setText("Pause");
                 playB.setText("Stop");
             } else {
                 playback.stop();
@@ -158,6 +159,7 @@
                 auB.setEnabled(false);
                 aiffB.setEnabled(false);
                 waveB.setEnabled(false);
+                pausB.setText("Pause");
                 captB.setText("Stop");
             } else {
                 lines.removeAllElements();  
@@ -229,7 +231,8 @@
             try {
                 this.file = file;
                 errStr = null;
-                audioInputStream = AudioSystem.getAudioInputStream(file);
+                audioInputStream = AudioSystem.getAudioInputStream(
+                          new BufferedInputStream(new FileInputStream(file)));
                 playB.setEnabled(true);
                 fileName = file.getName();
                 long milliseconds = (long)((audioInputStream.getFrameLength() * 1000) / audioInputStream.getFormat().getFrameRate());
@@ -385,6 +388,7 @@
                     }
                     int numBytesRemaining = numBytesRead;
                     while (numBytesRemaining > 0 ) {
+                        if (!line.isOpen()) break;
                         numBytesRemaining -= line.write(data, 0, numBytesRemaining);
                     }
                 } catch (Exception e) {