private void findNbrOfAlbums() {
        Logger.getLogger(ReportGenerator.class.getName()).entering(ReportGenerator.class.getName(), "findNbrOfAlbums");
        File[] series = baseDir.listFiles((File pathname) -> {
            String name = pathname.getName();
            return !pathname.isHidden() && pathname.isDirectory();
        });
        for (File serie : series) {
            nbrOfAlbums += serie.listFiles((File pathname) -> {
                String name = pathname.getName();
                return !pathname.isHidden() && (pathname.isDirectory() || name.toLowerCase().endsWith(".zip") || name.toLowerCase().endsWith("cbz") || name.toLowerCase().endsWith(".rar") || name.toLowerCase().endsWith(".cbr") || name.toLowerCase().endsWith(".pdf"));
            }).length;
        }
        Logger.getLogger(ReportGenerator.class.getName()).exiting(ReportGenerator.class.getName(), "findNbrOfAlbums");
    }