A Logic Riddle...

can u just listen to a cd from each box then once u find the different Cd then just seal the box back up

ok heres what i would do. first of all i would start by weighing 5 of the boxes together. from what they weigh i can determin if the delta box is amungst them or the outher 5. after i have eliminated 5 of the boxes i would then put on 3 of the 5 boxes and thereby eliminateing either those 3 or the 2 remaining and then eventually narrow it down to the one by only useing a maximum of 3 turns on the weight.

I don't buy cds i download them.

And i would just go home and use a scale. Or find a store nearby with a scale on display and use that one.