Unable to send .mp3 with sockets, help!

Question

I need to send my .mp3 files throw a server but it stays in stuck in out.write(lenght), any suggestions for another type of way to do this...
Other files are sent fine, .pdf, .txt, .doc... i might be the size but how to solve it...
try {
            Socket socket=null;                 
            socket = new Socket(GlobalValues.ipOut, GlobalValues.portOut);
            OutputStream out = socket.getOutputStream();     
            InputStream fis = new FileInputStream(f);
            int length=0;
            BufferedInputStream buf = new BufferedInputStream(fis);
            //byte[] buffer = new byte[9*9*1024];
            GlobalValues.creatTextArea("                 Uploading PLEASE WAIT...", 1, Color.red, 0); 
            while((length = buf.read()) != -1){
                out.write(length);
                out.flush();
            GlobalValues.creatTextArea("                  FINISHED upload", 1, Color.green, 0);             
            fis.close();
            out.close();
        catch(Exception e){
            e.printStackTrace();
        }

Answer 1

OutputStream out = socket.getOutputStream();     OutputStream out = new BufferedOutputStream(socket.getOutputStream());
int length=0;This is not a correct name for this variable. You are reading bytes from the input stream, not lengths. A better name would be 'data'.
while((length = buf.read()) != -1){
out.write(length);
out.flush();Move this flush to after the loop.
If you're blocking in the write() it means the reader is slow reading. Using the BufferedOutputStream may fix this.