Java

Media_Folder1
    |-> subfolder_1 -> File1, file2, etc...
    |-> subfolder_2 -> File1, file2, etc...
Media_Folder2
    |-> subfolder_1 -> File1, file2, etc...
    |-> subfolder_2 -> File1, file2, etc...
...

File rFolder = new File("/Media_Folder/");
File[] subFolderArray = rFolder.listFiles();
for (int i = 0; i < subFolderArray.length(); i++) {
     if (subFolderArray[i].isDirectory()) {
          // For each subfolder I'll enter it, and add each file to a custom file class array
          File[] tmpFolderContent = subFolderArray[i].listFiles();
          for (int i2 = 0; i2 < tmpFolderContent.length(); i2++) {
               myCustomFileClass tmpCustFile = new myCustomFileClass(tmpFolderContent[i2].getPath());
          }
          .... // etc...

6, 148, 72, 35, 0, 336, 0627, 50, 2
8, 183, 64, 0, 0, 233, 0672, 32, 2
1, 85, 66, 29 
1, 89, 66, 23, 94, 281, 0167, 21, 1
0, 137, 40, 35, 168, 431, 2288, 33, 2, 10, 9, 125
5, 116, 74, 0, 0, 256, 0201, 30, 1

public class VariableTransformation 
{
	
	private String FileName = "";
	private FileReader FileReader;	
	private BufferedReader buffFile;
	private ArrayList<string[]> attrDomainList = new ArrayList<string[]>();	
	private String[] item=null;
	
	
		
	
	
	public static void main(String[] args) 
	{
		VariableTransformation tds = new VariableTransformation();
		Scanner input=new Scanner(System.in);
		System.out.println("===============================================");
		System.out.print("Enter the file name>> ");
		String filename;
		filename=input.next();
		tds.fileLoad(filename);
		System.out.println("===============================================");
			
	}
	
	public void fileLoad(String fileName)
	{
		String line = "";
		String[] attrDomain;
		FileName = fileName;
			
		
		System.out.println("> Reading File..");
		try {
			int lineCount=0;
			int size=0;
			FileReader = new FileReader(FileName);
			buffFile = new BufferedReader(FileReader);

			try {
												
				while((line = buffFile.readLine()) != null)
				{
						item = line.split(",");
						size=item.length;
						attrDomain=new String[size];
						for (int i = 0; i < item.length; i++) {
							attrDomain[i]=item[i];							
						}						
						attrDomainList.add(attrDomain);
						lineCount++;
				}
				
				printData(attrDomainList);
				System.out.println("> Finish File Reading.");
				System.out.println("Number of Lines>> "+lineCount);
				System.out.println("===============================================");
				
			} 
			catch (IOException e) {
				System.out.println(e.getStackTrace().toString());
				System.out.println("# Error while reading file .");
			}
			finally
			{				
				try {buffFile.close();} catch (IOException e) {e.printStackTrace();}
				try {FileReader.close();} catch (IOException e) {e.printStackTrace();}
			}
		} catch (FileNotFoundException e) {
			System.out.println("> Error. Target File Don't exist.");
			e.printStackTrace();
		}	
	}
	
	
	private void printData(ArrayList<string[]> dataFile )
	{
		int Counter=0;				
		for (int i = 0; i < dataFile.size(); i++) {
			System.out.print("["+(++Counter)+"] ");			
			for (int j = 0; j < dataFile.get(i).length; j++) {
				System.out.print(dataFile.get(i)[j]+" ");					
			}		
			
		}		
		
	}
}