Indsætte data i MySQL database

Jeg indsætter en masse data i en MySQL database ved hjælp af dette script:
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import java.io.*;

public class FileScanner
{
  public static void visFiler(File mappe) throws Exception
  {
    File[] filer = mappe.listFiles();

    for (int i = 0; i < filer.length; i++)
    {
      File f = filer[i];

      System.out.println(f);
      Database.insertSQL("INSERT INTO files (fil) VALUES ('" + f + "');");

      if (f.isDirectory())
      {
        visFiler(f);
      }
    }

  }

  public static void main(String[] args) throws Exception
  {
    Database.makeConn("172.0.0.1", "test", "root", "");
    File t = new File("e:/");
    visFiler(t);
  }
}
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Database.java er bare en statisk klasse indeholdende en bunke metoder jeg bruger til bl.a. oprette forbindelse, indsætte data og hente data.

Her er et uddrag af Database-klassen:
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import java.sql.*;

public class Database
{
  private static Statement stmt;

  public static void makeConn(String ip, String db, String username, String password) throws Exception
  {
    Class.forName("com.mysql.jdbc.Driver");
    Connection conn = DriverManager.getConnection("jdbc:mysql://" + ip + "/" + db, username, password);
    stmt = conn.createStatement();
  }

  public static void insertSQL(String sql) throws Exception
  {
    stmt.executeUpdate(sql);
  }

  public static void close() throws SQLException
  {
    stmt.close();
  }
}

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Klasserne virker fint nok - der bliver indsat en masse data i databasen, men når der er indsat omkring 17300 rækker så får jeg en exception:

java.sql.SQLException: Syntax error or access violation,  message from server: "You have an error in your SQL syntax near 'F%20I%20COULD%20TURN%20BACK%20TIME[1].mid')' at line 1"
    at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:1876)
    at com.mysql.jdbc.MysqlIO.sendCommand(MysqlIO.java:1098)
    at com.mysql.jdbc.MysqlIO.sqlQueryDirect(MysqlIO.java:1192)
    at com.mysql.jdbc.MysqlIO.sqlQuery(MysqlIO.java:1153)
    at com.mysql.jdbc.Connection.execSQL(Connection.java:2048)
    at com.mysql.jdbc.Connection.execSQL(Connection.java:2005)
    at com.mysql.jdbc.Statement.executeUpdate(Statement.java:1252)
    at com.mysql.jdbc.Statement.executeUpdate(Statement.java:1198)
    at test.Database.insertSQL(Database.java:31)
    at test.FileScanner.visFiler(FileScanner.java:16)
    at test.FileScanner.visFiler(FileScanner.java:20)
    at test.FileScanner.visFiler(FileScanner.java:20)
    at test.FileScanner.visFiler(FileScanner.java:20)
    at test.FileScanner.visFiler(FileScanner.java:20)
    at test.FileScanner.visFiler(FileScanner.java:20)
    at test.FileScanner.visFiler(FileScanner.java:20)
    at test.FileScanner.visFiler(FileScanner.java:20)
    at test.FileScanner.main(FileScanner.java:30)

Hvad kan problemet være?