DatastoreService datastoreService = DatastoreServiceFactory.getDatastoreService();



        BlobInfoFactory blobInfoFactory = new BlobInfoFactory(datastoreService);
        BlobInfo hi2 = blobInfoFactory.loadBlobInfo(blobKey);

        Long fileSize = hi2.getSize();
        Integer times = (int) ((fileSize + 1000000 -1) / 1000000);




        long idv3 = fileSize - 128;

        long titleFirst = fileSize - 125;
        long titleLast = fileSize - 96;

        long albumFirst = fileSize - 65;
        long albumLast = fileSize - 36;

        long artistFirst = fileSize - 95;
        long artistLast = fileSize - 66;


        byte [] titleArray = blobstoreService.fetchData(blobKey, titleFirst, titleLast);
        byte [] albumArray = blobstoreService.fetchData(blobKey, albumFirst, albumLast);
        byte [] artistArray = blobstoreService.fetchData(blobKey, artistFirst, artistLast);


        String title = new String(titleArray);
        String album = new String(albumArray);
        String artist = new String(artistArray);


        title = title.replaceAll("\\p{Cntrl}", "");
        album = album.replaceAll("\\p{Cntrl}", "");
        artist = artist.replaceAll("\\p{Cntrl}", "");