After that I came across .hack//LINK Victory Spark cards via Rakuten and managed to obtain afew booster boxes however getting all the cards is a challenge as you get 1 holographic card per box with a total of 16 .-. Following the use of yahoo auctions (and ebay) I found afew other card series some of which I did not know existed.
Which brings us to topic of what are the different .hack card series? From what I've seen .hack//Roots has cards in each DVD.
Here is what I've came across so far:
-.hack//Enemy: 5 booster series, 8 decks, GIFT and promo cards (Elk + Mia decks not shown)

-.hack//LINK Victory Spark: 1 booster series with 4 promo card,trial deck including 1 promotional card (Saika) and signed versions of 2 cards. http://vs-tcg.wikidot.com/series:hack

-.hack//G.U. The Card Battle: 84 cards http://dothack.wikia.com/wiki/Card_Battle

-Carddass Masters: These came from .hack//SIGN dvds and have characters on their backs.

-.hack//TC & TCG (Carddass Masters): Released in the same booster pack with 7 cards from each inside.

-.hack AP cards 1-4 + .hack//SIGN 1-5: Came across these in an auction.
