Not Reading Or Writting DVD's

I have a PowerBook G4 1.67Ghz with a MATSHITA DVD-R UJ-846 superdrive. I just recently bought a Memorex 8x DVD+R. When I place a blank DVD in, my mac doesn't read it. It doesn't show up on the desktop. When I try using Toast7 i get an error message. Anyone know what I can do?
 Powerbook G4 1.67 high res, 30GB iPod 5G  Mac OS X (10.4.5) iMac G4

Try different media. I always recommend using Verbatim or Apple branded media when you have problem to rule out the possibility that it's media related.

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Why does my mac mini not read or write DVD's?

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See my FAQ*:
http://www.macmaps.com/cdrfailure.html

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Hi daf,
Try this Your Windows PC doesn't recognize iPod
Happy New Year
Colin R.

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Those videos are probably not in an iPod-friendly format. It’s picky about that. You can try converting them, if possible.
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IMac G5 cant read and write DVD-R

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To Apple Discussions!
Make sure you have enough storage space to burn.
Make sure the DVDs are not scratched, smudged and/or dirty.
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At the bottom left of the window, click on the black ? mark inside the purplecircle.
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Enter dvd in the search field.

Windows 7 adobe elements 10 not reading all of dvd videos

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Hi,
Copy the videos on the desktop and then try to play the videos again.

Why does this class not read and write at same time???

I had another thread where i was trying to combine two class files together
http://forum.java.sun.com/thread.jspa?threadID=5146796
I managed to do it myself but when i run the file it does not work right. If i write a file then try and open the file it says there are no records in the file, but if i close the gui down and open the file everything get read in as normal can anybody tell me why?
import java.io.*;
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import bank.BankUI;
import bank.*;
public class testing extends JFrame {
   private ObjectOutputStream output;
   private BankUI userInterface;
   private JButton SaveToFile, SaveAs, Exit; //////////savetofile also saves to store need to split up and have 2 buttons
   //private Store store; MIGHT BE SOMETHING TO DO WITH THIS AS I HAD TO COMMENT THIS STORE OUT TO GET IT WORKING AS STORE IS USED BELOW
   private Employee record;
//////////////////////////////////////from read
private ObjectInputStream input;
   private JButton nextButton, openButton, nextRecordButton ;
   private Store store = new Store(100);
     private Employee employeeList[] = new Employee[100];
     private int count = 0, next = 0;
/////////////////////////////////////////////from read end
   // set up GUI
   public testing()
      super( "Employee Data" ); // appears in top of gui
      // create instance of reusable user interface
      userInterface = new BankUI( 9 ); // nine textfields
      getContentPane().add( userInterface, BorderLayout.CENTER );
      // configure button doTask1 for use in this program
      SaveAs = userInterface.getSaveAsButton();
      SaveAs.setText( "Save as.." );
//////////////////from read
openButton = userInterface.getOpenFileButton();
      openButton.setText( "Open File" );
openButton.addActionListener(
         // anonymous inner class to handle openButton event
         new ActionListener() {
            // close file and terminate application
            public void actionPerformed( ActionEvent event )
               openFile();
         } // end anonymous inner class
      ); // end call to addActionListener
      // register window listener for window closing event
      addWindowListener(
         // anonymous inner class to handle windowClosing event
         new WindowAdapter() {
            // close file and terminate application
            public void windowClosing( WindowEvent event )
               if ( input != null )
                         closeFile();
               System.exit( 0 );
         } // end anonymous inner class
      ); // end call to addWindowListener
      // get reference to generic task button doTask2 from BankUI
      nextButton = userInterface.getDoTask2Button();
      nextButton.setText( "Next Record" );
      nextButton.setEnabled( false );
      // register listener to call readRecord when button pressed
      nextButton.addActionListener(
         // anonymous inner class to handle nextRecord event
         new ActionListener() {
            // call readRecord when user clicks nextRecord
            public void actionPerformed( ActionEvent event )
               readRecord();
         } // end anonymous inner class
      ); // end call to addActionListener
//get reference to generic task button do Task3 from BankUI
      // get reference to generic task button doTask3 from BankUI
      nextRecordButton = userInterface.getDoTask3Button();
      nextRecordButton.setText( "Get Next Record" );
      nextRecordButton.setEnabled( false );
      // register listener to call readRecord when button pressed
      nextRecordButton.addActionListener(
         // anonymous inner class to handle nextRecord event
         new ActionListener() {
            // call readRecord when user clicks nextRecord
            public void actionPerformed( ActionEvent event )
               getNextRecord();
         } // end anonymous inner class
      ); // end call to addActionListener
///////////from read end
      // register listener to call openFile when button pressed
      SaveAs.addActionListener(
         // anonymous inner class to handle openButton event
         new ActionListener() {
            // call openFile when button pressed
            public void actionPerformed( ActionEvent event )
               SaveLocation();
         } // end anonymous inner class
      ); // end call to addActionListener
      // configure button doTask2 for use in this program
      SaveToFile = userInterface.getSaveStoreToFileButton();
      SaveToFile.setText( "Save to store and to file need to split this task up" );
      SaveToFile.setEnabled( false ); // disable button
      // register listener to call addRecord when button pressed
      SaveToFile.addActionListener(
         // anonymous inner class to handle enterButton event
         new ActionListener() {
            // call addRecord when button pressed
            public void actionPerformed( ActionEvent event )
               addRecord(); // NEED TO SPLIT UP SO DONT DO BOTH
         } // end anonymous inner class
      ); // end call to addActionListener
Exit = userInterface.getExitAndSaveButton();
      Exit.setText( "Exit " );
      Exit.setEnabled( false ); // disable button
      // register listener to call addRecord when button pressed
      Exit.addActionListener(
         // anonymous inner class to handle enterButton event
         new ActionListener() {
            // call addRecord when button pressed
            public void actionPerformed( ActionEvent event )
               addRecord(); // adds record to to file
               closeFile(); // closes everything
         } // end anonymous inner class
      ); // end call to addActionListener
      // register window listener to handle window closing event
      addWindowListener(
         // anonymous inner class to handle windowClosing event
         new WindowAdapter() {
            // add current record in GUI to file, then close file
            public void windowClosing( WindowEvent event )
                         if ( output != null )
                            addRecord();
                              closeFile();
         } // end anonymous inner class
      ); // end call to addWindowListener
      setSize( 600, 500 );
      setVisible( true );
     store = new Store(100);
   } // end CreateSequentialFile constructor
   // allow user to specify file name
////////////////from read
// enable user to select file to open
   private void openFile()
      // display file dialog so user can select file to open
      JFileChooser fileChooser = new JFileChooser();
      fileChooser.setFileSelectionMode( JFileChooser.FILES_ONLY );
      int result = fileChooser.showOpenDialog( this );
      // if user clicked Cancel button on dialog, return
      if ( result == JFileChooser.CANCEL_OPTION )
         return;
      // obtain selected file
      File fileName = fileChooser.getSelectedFile();
      // display error if file name invalid
      if ( fileName == null || fileName.getName().equals( "" ) )
         JOptionPane.showMessageDialog( this, "Invalid File Name",
            "Invalid File Name", JOptionPane.ERROR_MESSAGE );
      else {
         // open file
         try {
            input = new ObjectInputStream(
               new FileInputStream( fileName ) );
            openButton.setEnabled( false );
            nextButton.setEnabled( true );
         // process exceptions opening file
         catch ( IOException ioException ) {
            JOptionPane.showMessageDialog( this, "Error Opening File",
               "Error", JOptionPane.ERROR_MESSAGE );
      } // end else
   } // end method openFile
public void readRecord() // need to merger with next record
      Employee record;
      // input the values from the file
      try {
     record = ( Employee ) input.readObject();
               employeeList[count++]= record;
               store.add(record);/////////ADDS record to Store
          store.displayAll();
          System.out.println("Count is " + store.getCount());
         // create array of Strings to display in GUI
         String values[] = {
                    String.valueOf(record.getName()),
                        String.valueOf(record.getGender()),
                    String.valueOf( record.getDateOfBirth()),
                    String.valueOf( record.getID()),
                         String.valueOf( record.getStartDate()),
                    String.valueOf( record.getSalary()),
                    String.valueOf( record.getAddress()),
                       String.valueOf( record.getNatInsNo()),
                    String.valueOf( record.getPhone())
// i added all those bits above split onto one line to look neater
         // display record contents
         userInterface.setFieldValues( values );
      // display message when end-of-file reached
      catch ( EOFException endOfFileException ) {
         nextButton.setEnabled( false );
      nextRecordButton.setEnabled( true );
         JOptionPane.showMessageDialog( this, "No more records in file",
            "End of File", JOptionPane.ERROR_MESSAGE );
      // display error message if class is not found
      catch ( ClassNotFoundException classNotFoundException ) {
         JOptionPane.showMessageDialog( this, "Unable to create object",
            "Class Not Found", JOptionPane.ERROR_MESSAGE );
      // display error message if cannot read due to problem with file
      catch ( IOException ioException ) {
         JOptionPane.showMessageDialog( this,
            "Error during read from file",
            "Read Error", JOptionPane.ERROR_MESSAGE );
   } // end method readRecord
   private void getNextRecord()
           Employee record = employeeList[next++%count];//cycles throught accounts
      //create aray of string to display in GUI
      String values[] = {String.valueOf(record.getName()),
         String.valueOf(record.getGender()),
          String.valueOf( record.getStartDate() ), String.valueOf( record.getAddress()),
     String.valueOf( record.getNatInsNo()),
     String.valueOf( record.getPhone()),
         String.valueOf( record.getID() ),
           String.valueOf( record.getDateOfBirth() ),
     String.valueOf( record.getSalary() ) };
     //display record contents
     userInterface.setFieldValues(values);
     //display record content
///////////////////////////////////from read end
private void SaveLocation()
      // display file dialog, so user can choose file to open
      JFileChooser fileChooser = new JFileChooser();
      fileChooser.setFileSelectionMode( JFileChooser.FILES_ONLY );
      int result = fileChooser.showSaveDialog( this );
      // if user clicked Cancel button on dialog, return
      if ( result == JFileChooser.CANCEL_OPTION )
         return;
      File fileName = fileChooser.getSelectedFile(); // get selected file
      // display error if invalid
      if ( fileName == null || fileName.getName().equals( "" ) )
         JOptionPane.showMessageDialog( this, "Invalid File Name",
            "Invalid File Name", JOptionPane.ERROR_MESSAGE );
      else {
         // open file
         try {
            output = new ObjectOutputStream(
               new FileOutputStream( fileName ) );
            SaveAs.setEnabled( false );
            SaveToFile.setEnabled( true );
          Exit.setEnabled( true );
         // process exceptions from opening file
         catch ( IOException ioException ) {
            JOptionPane.showMessageDialog( this, "Error Opening File",
               "Error", JOptionPane.ERROR_MESSAGE );
      } // end else
   } // end method openFile
   // close file and terminate application
private void closeFile()
      // close file
      try {
          //you want to cycle through each recordand add them to store here.
                                        int storeSize = store.getCount();
                                        for (int i = 0; i<storeSize;i++)
                                        output.writeObject(store.elementAt(i));
         output.close();
input.close();// from read!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
         System.exit( 0 );
      // process exceptions from closing file
      catch( IOException ioException ) {
         JOptionPane.showMessageDialog( this, "Error closing file",
            "Error", JOptionPane.ERROR_MESSAGE );
         System.exit( 1 );
   } // end method closeFile
   // add record to file
   public void addRecord()
      int employeeNumber = 0;
      String fieldValues[] = userInterface.getFieldValues();
      // if account field value is not empty
      if ( ! fieldValues[ BankUI.IDNUMBER ].equals( "" ) ) {
         // output values to file
         try {
            employeeNumber = Integer.parseInt(
               fieldValues[ BankUI.IDNUMBER ] );
                    String dob = fieldValues[ BankUI.DOB ];
                    String[] dateofBirth = dob.split ("-"); // what used to put between number chnage to /
                    String sDate = fieldValues[ BankUI.START ];
                    String[] startDate = sDate.split ("-");
                    String sex = fieldValues[ BankUI.GENDER ];
                    char gender = (sex.charAt(0)); // check if m or f prob check in employee
if ( employeeNumber >= 0 ) {
              /* create new record =String name, char gender, Date dob, String add, String nin, String phone, String id, Date start, float salary*/
                record = new Employee(
                fieldValues[ BankUI.NAME ],
                    gender,
                new Date(     Integer.parseInt(dateofBirth[0]),
                          Integer.parseInt(dateofBirth[1]),
                          Integer.parseInt(dateofBirth[2])),
                    fieldValues[ BankUI.ADDRESS ],
                    fieldValues[ BankUI.NATINTNO ],
                    fieldValues[ BankUI.PHONE ],
                    fieldValues[ BankUI.IDNUMBER ],
          new Date(     Integer.parseInt(startDate[0]),
                          Integer.parseInt(startDate[1]),
                          Integer.parseInt(startDate[2])),
          Float.parseFloat( fieldValues[ BankUI.SALARY ] ));
                    if (!store.isFull())
                         store.add(record);
                    else
                    JOptionPane.showMessageDialog( this, "The Store is full you cannot add\n"+
                     "anymore employees. \nPlease Save Current File and Create a New File." );
                         System.out.println("Store full");
                    store.displayAll();
                    System.out.println("Count is " + store.getCount());
                              // output record and flush buffer
                              //output.writeObject( record );
               output.flush();
            else
                JOptionPane.showMessageDialog( this,
                   "Account number must be greater than 0",
                   "Bad account number", JOptionPane.ERROR_MESSAGE );
            // clear textfields
            userInterface.clearFields();
         } // end try
         // process invalid account number or balance format
         catch ( NumberFormatException formatException ) {
            JOptionPane.showMessageDialog( this,
               "Bad ID number, Date or Salary", "Invalid Number Format",
               JOptionPane.ERROR_MESSAGE );
         // process exceptions from file output
         catch ( ArrayIndexOutOfBoundsException ArrayException ) {
             JOptionPane.showMessageDialog( this, "Error with Start Date or Date of Birth\nPlease enter like: 01-01-2001",
                "IO Exception", JOptionPane.ERROR_MESSAGE );
                  // process exceptions from file output
         catch ( IOException ioException ) {
             JOptionPane.showMessageDialog( this, "Error writing to file",
                "IO Exception", JOptionPane.ERROR_MESSAGE );
            closeFile();
      } // end if
   } // end method addRecord
   public static void main( String args[] )
      new testing();
} // end class CreateSequentialFile

Sure you can read and write at the same time. But normally you would be reading from one place and writing to another place.
I rather regret avoiding the OP's earlier post asking how to combine two classes. I looked at the two classes posted and realized the best thing to do was actually to break them into more classes. But I also realized it was going to be a big job explaining why and how, and I just don't have the patience for that sort of thing.
So now we have a Big Ball Of Tar™ and I feel partly responsible.

Mac OS X 10.9.1 will not read or write my WD external hard drive. How can I permanently make it so that it can without losing files on drive?

I have a Macbook pro 10.9.1 that will not communicate with my WD external hard drive. Whenever I connect the drive, this pops up:
NTFS-3G could not mount /dev/disk1s1
at /Volumes/Elements because the following problem occurred:
dyld: Library not loaded: /usr/local/lib/libfuse.2.dylib
Referenced from: /usr/local/bin/ntfs-3g
Reason: image not found
I have important photos and videos on here of my family and can't lose them. I tried downloading multiple third party applications like Tuxera and NFTS 3G but they're only trials. How can I permanently set up my mac to read and write without risking to lose all my stuff on the external hard drive. Thanks in advance for any support.

babowa, it seems like it is using Fuse & NTFS, so I don't think it's the classic WD + 10.9 mess, but extra WD tools & drivers can still break things MtTran.
MrTran, if you must use unsupported disk formats on your Mac you must also consider actually paying the developers that made the trial software.
It's probably a good idea to follow the developers removal instructions, reboot & then install one tool at a time.
MacFuse, FuseOSX, NTFS-3G are all likley to confict if you run older versions so you need to be sure you are using the latest version. I can't remeber which one depends on the other, so you will need to read the manuals.
When the disk is readable copy the data to another disk. You could probably do this from a Linux distro or Windows if OS X won't do it.
If you insist on only using the trial versions you will need to reinstall Mac OS, copy data off this disk & reformat it.
Is there any good reason for not using the Mac HFS extended format?

DVD drive will play audio CDs but will not read from a DVD with photos saved on it -

DVD drive will not read DVD with photos saved on it. Also will not run system discs. Gives mesage "please insert a disc into Drive D. It plays CDs fine so appears to be working.
Please advise - thank you.
Gerry

I too have this same problem. Posted about it in another thread then saw this. I hope there is a fix.

Not Reading Or Writting DVD's

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