No u can only buy games off the ps store or go to (in this case) a GameStop and get the disc
Yes you can use the Playstation Network to download PS3 games
To download games to the Sony Playstation3 go to the Playstation3 store that is located in the menu. Choose the game you want and click on cart and check out. You will pay at this time unless it is free.
When you purchase the game, they send you an e-mail with a link in it. This is for a dowmload manager, which will then download an executable file to your computer. When the download completes, you merely run the program and the game installs. You don't download games there. You purchase games there which then get shipped to your house. It's not Steam.
no but you can download music to it
Yes but its only for the internal one not usb hdd.
go here for how to download and play ps3 games http://ps3-playstation3-download-games.blogspot.com/ yes i think so Well I don't know. I know you can burn and download WII games. But I don't have a link to the website.
yes
Yes
no because ps3 has no games.
Video games
no
No PS3 games do not play on a PS2