I know I can use an iPod nano as a flash drive by connecting the iPod to the computer and selecting the iTunes option "Enable disk use".
(as stated here https://discussions.apple.com/thread/3091809?tstart=0)
My question is, after doing that, if I paste an mp3 song from the windows folder explorer (I mean, without using iTunes).
Will I be able to play that song on the go with the iPod?
My goal is to make an iPod nano behave just like any other mp4 player, play any song I copy from my PC without using iTunes, and also use it to take other files with me.
Best Answer
No.
Apple does not want you to manage your own music.
Apple specifically engineered their products to prevent you from easily dragging and dropping files for quick portable usage.
Reasoning behind this is to encourages more sales from iTunes by forcing users to only use iTunes to manage music.
To quote Apple,
https://support.apple.com/en-us/HT201567
A warning: Keep your backups handy because once your music is in the iPod it's difficult or impossible to get back