Yes
Yes, You need the disk and you cant use your friends disk and download it to your Xbox 360 it will say you need the disk in your Xbox when you play it.
No. You still need the disk. Therefore it is pretty much pointless to download the game to your hard drive.
Yes you either need the game disc or a game download
No you can't, you need the disk in order to play the game.
To download a new game you need an Internet connection so you can go to the PlayStation store from your PSP and download game directly or you can go to a store and buy a UMD disk so you can put the disk in your PSP and play the game you bought.
In the disk version you need a disk to play in the download version you do not
No you can't, you need the disk of the expansion pack to play the game.
Nowhere, you need to have the game installed on your computer and the disk to play it.
Yes, almost all games bought and/or downloaded online don't need a disk.
I ordered the complete edition and it does not have disk 1 but I have an original copy of the sims. Since you need disk 1 to put the other disks on the game, can I just use my original sims disk?
A digital download for a game is generally faster than installing from a disk, as it eliminates the need for physical media and the time spent inserting and reading from the disk. The speed of a digital download depends on internet connection bandwidth, while disk installation speed can be limited by the read speed of the optical drive. Additionally, digital downloads often allow for immediate gameplay as the game can start while other parts are still downloading, whereas disk installations typically require complete installation before playing.
You need to go to Game Marketplace. Find Red Dead Redemption. Then there should be a DLC list.