Im looking for the detacher you can use at the rental stores that unlocks the little tabs out of the dvd case. I saw one online but its about 110.00. I tryed the homemade spider key on the case but that didnt work. I know i should be able to make one from some n45 magnets but what magnet sizes should i use.

I was thinking of buying the super detacher that unlocks about 20 different tags. I think i should be able to make a replica of this super detacher also, if so then it will probably be universal and i can use one the dvd cases too. The case's im talking bout you can open up and they either have a red or white tab slightly bigger than the hole in the middle of the disc that holds the disc in place.