The name will come to you while you are in a mental space where you are both excited for making music, and prepared to share how you feel about the music.
The greatest name lies between those two thought trains
You can buy drm free games / music / ebooks, and if you keep backups of your data (like documents and family photos etc), then you shouldn't lose the game. but with a disk, your toddler could put it in the toaster and there goes your $60