Unfortuneatly, you pretty much can't... :(
Here is the totorial How do you download music into your i-pod touch? http://www.downloadvideos-convert.com/video-to-ipod-converter.html
get your ipod and hook it up to your ps3.Then download the music you want to your ps3 from your ipod.Then hook up your nook to your ps3 and download the music to your nook.
USB connection to the blackberry then download from your music off PS3 harddrive
The PS3 does not download discs. You might use a USB to move a video or music to the PS3
you cant
go to music marketplace
Buy an I pod or use your madola oblongata
Here is the totorial How do you download music into your i-pod touch? http://www.downloadvideos-convert.com/video-to-ipod-converter.html
I believe iTunes
put your flash drive in the ps3 and then you could download movies or music
To download on the PS3 for games and add ons you must go through the Playstation store. For Music and Videos there are more options like Netflix that you can join through your PS3
You must purchase it from the store