no it isn't
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You do need a hard drive to download expansions, but the system won't turn on if you don't have a hard drive, so if you can turn it on without problems, and can play games then you definitely have a hard drive and you are able to download expansions.
Not real Actually it is reall its just hard to download and hard to find
put it into your computer then download them onto your hard drive then download it onto your card
You have to jailbreak your PS3 otherwise you cant. but its hard to find a jailbreak download without a survey
go hard