Help i am a newb

[stodag]

hi welcome.. cso files are compressed iso files an iso file is what you would get if you do a backup of the game you already own.. its an img of your game. good luck

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sorry.. you would get an iso file if you did a backup.. If you compress your backup then itvbecomes a cso file

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I agree your post shouldnt have been closed as you clearly stated your a newb.