how do you delete music/pictures from the hard drive?
MENU>System Setup>Manage HDD
Under there you will find 2 buttons
"Delete All of My Music Files"
"Delete ALL of My Picture Files"
If you want to just delete specific files, then this is a little trickier.
Here's how you do it for Music files....I'm not sure about pictures.
Each time you load Music files onto the MyGig, it creates a new Playlist containing those files.
Press "My Files"
Press "My Music"
Press "My Playlists"
Press the "Edit" button next to one of the Playlists
Press Delete Songs from this Playlist or Delete this Playlist. You can delete all the songs from a playlist or select specific songs to delete.