If you want to only play DVDs is well served with the unit, but once you want to watch via the USB port, it will be difficult: Only recognized USB sticks that are formatted with FAT32, exFAT or NTFS with nothing; that is, the files must be less than 4GB, each (HD) movie must therefore be split. With passive disks, the device also has a problem, the connection does not have enough power to supply them.