Exclamation [Q] .nomedia file auto forming on external sd card . Help?

On my Galaxy Core, since a few days ago, .nomedia files keep auto-forming on the external SD card, making it impossible for apps like play music or even the stock gallery app to detect any media . I delete them (the .nomedia files), format my sd card and put all my stuff back and it works for a few hours, then stops, and when i check it using root explorer, there's another .nomedia file. This is getting extremely annoying. There's hardly any point for me to even have an external sd card if I don't get to put my media on it. Does anyone know the solution to this? any help would be awesome.