Hacking Help! Problem already.

[Barra]

I have copied all the files over to my M3 DS Simply and it says couldn't find _DS_MENU.dat
When I look through my SD Card, it is there but it is set to open with Windows Media Player which obviously doesn't work.
Does anyone know what I should do?

Thanks

 

[Barra]

Never mind.
Got it working

Read the user manual wrong