Getting metadata of mp3 files

hi,
how can i get the meta data information from the Mp3 files..
i need song name, album name, album art(Artwork), artist...
how can i get these information. and one more requirement is it should dynamically change when i change song..
Any information regarding this is really helpful.
thanks in advance..

What bouye said... For a quick test some time ago, I used jid3lib-0.5.4.jar (but there are other libraries):
import org.farng.mp3.*;
import org.farng.mp3.id3.*;
import org.farng.mp3.lyrics3.*;
def filePath = "D:/Documents/Music/Blur - Song 2.mp3";
var foundTags: String;
var sourceFile: File = new File(filePath);
var raf: RandomAccessFile = null;
var mp3file: MP3File = null;
//~ var tag: ID3v1_1 = null;
var tag: ID3v1 = null;
try
raf = new RandomAccessFile(sourceFile, "r");
catch (fnfe: FileNotFoundException)
println("File not found: {fnfe}");
foundTags = "(File not found)";
try
//~      tag = new ID3v1_1(raf);
tag = new ID3v1(raf);
catch (ioe: IOException)
println("IOException: {ioe}");
foundTags = "(Cannot read file)";
catch (tnfe: TagNotFoundException)
println("TagNotFoundException: {tnfe}");
foundTags = "(No tag found)";
finally
try { raf.close(); }
catch (ioe: IOException) { println("IOException: {ioe}"); }
if (tag != null)
foundTags =
      "Title: {tag.getSongTitle()}\n"
      "Artist: {tag.getLeadArtist()}\n"
      "Album: {tag.getAlbumTitle()}\n"
      "Genre: {tag.getSongGenre()}\n";
var tags = Text
translateX: 20
translateY: 20
textOrigin: TextOrigin.TOP
content: "..."
font: Font { size: 12 }
fill: Color.DARKBLUE
tags.content = foundTags;

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I went to preferences and set the music file address to the folder which contains all of my MP3 files. I
That will tell iTunes to use this folder. iTunes does not "watch" this folder to see if anything is added. You have to add it to the library yourself and iTunes will put it in this folder under Artist -> Album.
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- insert a CD and select Import.
- click on iTunes Music Store and purchase songs.
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To get music onto the iPod;
- Plug it in.
Yeah, it really is that simple.
Easiest way to manage your library is to use iTunes.
Edit the ID3 tags, add delete songs and put them onto the iPod.

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Get the duration of all mp3 files inside a directory

Hello everyone,
I am working on a little project done with swing. Since I need an mp3 player inside my swing application, I found a really good solution with JavaFX 2. I have never worked with JavaFX before, therefor it seems to me a little bit strange on some parts.
Anyway.
I created a button on my application and as soon as somebody presses that button, the application should scan recursivly a unique directory for mp3 files and store the information of artist, title and track length into a database.
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http://www.java2s.com/Code/Java/JavaFX/Mp3playerwithmetadataviewandcontrolpanel.htm
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or
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mp.totalDurationProperty().addListener(new TotalDurationListener());I can image that the mediaplayer can "host" several media objects somewho and the listener is called as soon as a new media will be added to the mediaplayer in order
the calculate the overall duration.
When is this listener exactly called and is there no other ways to get the total length of the mp3 file?
Here is a minimal example which should work without any external libs
package de.hauke.schwimmbad.application.playground;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.io.File;
import java.util.ArrayList;
import java.util.List;
import javafx.application.Platform;
import javafx.beans.property.ReadOnlyObjectWrapper;
import javafx.embed.swing.JFXPanel;
import javafx.scene.Scene;
import javafx.scene.layout.BorderPane;
import javafx.scene.media.Media;
import javafx.scene.media.MediaPlayer;
import javafx.scene.paint.Color;
import javafx.util.Duration;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.UIManager;
public class Testing10 extends JFrame {
     private MediaPlayer mediaPlayer;
     private final ReadOnlyObjectWrapper<MediaPlayer> mediaPlayerWrapper = new ReadOnlyObjectWrapper<MediaPlayer>(
               this, "mediaPlayer");
     public static void main(String[] args) {
          try {
               UIManager.setLookAndFeel(UIManager.getSystemLookAndFeelClassName());
               new Testing10();
          } catch (Exception ex) {
               System.out.println(ex);
     public Testing10() {
          super();
          setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
          setLayout(null);
          setSize(500, 500);
          setTitle("Testing");
          setLocationRelativeTo(null);
          setResizable(false);
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          button.setBounds(10, 10, 150, 30);
          add(button);
          button.addActionListener(new ActionListener() {
               public void actionPerformed(ActionEvent arg0) {
                    scan();
          final JFXPanel fxPanel = new JFXPanel();
          fxPanel.setBounds(30, 80, 300, 300);
          add(fxPanel);
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               public void run() {
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          setVisible(true);
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}The other question is why do I need a listener for the meta data to be changed in order to get the meta data?
media.getMetadata().addListener(new MapChangeListener<String, Object>()Why can't I call something like
media.getMetadata() --> returns a filled map?
The metadata problem is not included inside the example from above.
Sorry for my english but I hope everybody can understand the issue.
Many greetings,
Hauke

The nature of the Media class is that it accesses it asynchronously. This means that when you create an instance of it, and then immediately query it, the data you want may not be available yet. This is all in the Javadoc, see the doc for Media:
The media information is obtained asynchronously and so not necessarily available immediately after instantiation of the class. All information should however be available if the instance has been associated with a MediaPlayer and that player has transitioned to MediaPlayer.Status.READY statusSo you could associate the Media with a MediaPlayer, and then wait until it goes to the Status READY, and then read the length of the Media.
As for your 2nd question, getMetadata() returns a Map. You can just loop through it:
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Itunes can't read metadata from some mp3 files

I'm running itunes on windows 7 64. I transferred my library from my old xp machine and everthing seems to be fine except that about 20 albums have lost their metadata (some have the album name, but no tracks - most have nothing). When I attempt to use the 'get track info' option, it tells me that it can only retrieve track information for files that were imported using iTunes - which mine all were. The tracks all play just fine.
The odd thing is that windows media player has no issue pulling the track info out of the files. In fact, it even displays a field indicating that the mp3 files were created originally using iTunes.
Just for kicks, I copied the files over to a machine running win xp and attempted to do the import there (thinking that iTunes may be flaky on win 7), but no joy.
The tracks all have their data intact, as demonstrated by wmp and I really want iTunes to be able to read it out because it would take forever to hand tag each one all over again. If I don't get them tagged, I'll have a lot of trouble syncing these with my iPod. Suggestions anyone?

When I attempt to use the 'get track info' option, it tells me that it can only retrieve track information for files that were imported using iTunes - which mine all were.
You mean when you go to iTunes menu Advanced -> Get CD track names.
That is different than right click - get info on a track.
In order to Get CD track names, the songs must be rRIP'd using the same iTunes library on the same computer. It will not work if you RIP on one computer and copy them to another computer.
Try this...
Select one of the songs in iTunes, right click - Convert ID3 tags and select V2.3.

I am trying to convert a whole lot of MP3 files and I keep getting error -50, on some of the tracks, but a significant percentage of them.

I have several thousand mp3 files I'd like to convert to AAC, to allow Itunes Match to have a better chance at actually getting a pozitive match.
Howver, after doing maybe 30 or so files I get an error - Error occured converting the file "<track Name>". An unknown error occurred (-50).
Any ideas anyone?
Itunes 10.6.3 (25) 64 Bit
OSX 10.8 (12A269)
Model Name:          iMac
Model Identifier:          iMac12,2
Processor Name:          Intel Core i5
Processor Speed:          3.1 GHz
Number of Processors:          1
Total Number of Cores:          4
L2 Cache (per Core):          256 KB
L3 Cache:          6 MB
Memory:          16 GB
Boot ROM Version:          IM121.0047.B1F
SMC Version (system):          1.72f5

Doing a quick Google search with this search criterea "iTunes An unknown error occurred (-50)" found several types of situations for that error code. I suggest you use the same search critera in a search and see if anything applies.
An Apple article found Here has to do with downloading music from iTunes. I assume that does not apply to you, but may be worth looking at.

I get an error when trying to import MP3 files in iTunes?

When I try to import mp3 files into iTunes (version 6), I get an error message of:
The file "song file name" can not be imported An unknown error has occurred (-50).
I have already imported these files into iTnes on my old computer, but run into this problem with my new laptop. I downloaded a new version of iTunes just like I installed all my new programs on this new laptop.
For some reason, I run into this problem when trying to import any mp3 files (as mentioned, even mp3 files that I successfully imported into iTunes previously).
(I've tried a complete removal and re-install, but that didn't help)
Anyone know why I'm getting this error message and how to correct things?
Thanks in advance for any help !!!

C:\DOCUME~1\Mark\LOCALS~1\Temp\WERe357.dir00\iTunes.exe.mdmp
C:\DOCUME~1\Mark\LOCALS~1\Temp\WERe357.dir00\appcompat.txt
those are the files that are sent as an error report... i dont know what the problem is! this is starting to get me mad! I need my music! some1 help plz.
I cant load that one folder, what could be the problem? I've loaded another folder similar to this one but it was alot smaller and everything worked out fine, but for my big one its messing up.

I converted aif files to mp3 files in I tunes so I could put them on a flash drive. Now when I transfer an album to the flash drive I get both the aif files and the mp3 files in the flash drive. How do I get the iTunes to only copy the smaller file?

I converted aif files to mp3 files in iTunes so I could put them on a flash drive. Now when I transfer an album to the flash drive I get both the aif files and the mp3 files on the flash drive. How do I get the iTunes to only copy the smaller file?

My suggestion to use the smart playlist was more along the lines of making one list with rules to show everything in your library as long as it was kind "mpeg" (= mp3).
Smart playlists cannot be edited manually, only by changing the rules. You can use them as the basis for another smart playlist though.
There is added overhead to using smart playlists, so don't go overboard.

HT1351 I've encoded a vinyl LP record into digital format and recorded it onto an usb as MP3 file. But when I tried to copy it onto my ipod classic, I get a message stating "was not copied to the ipod because it cannot be played on this ipod". Why?

I've encoded a vinyl LP record into digital format and recorded it onto an usb as MP3 file. But when I tried to copy it onto my ipod classic, I get a message stating "was not copied to the ipod because it cannot be played on this ipod". Why?

I was refering to the "sample rate", normally 44.1 KHz, the iPod might not be able to play tracks with a non-standard rate. Otherwise I'm not sure what the issue might be.
tt2

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