First of all, no crossposting, this is also in the BenQ forum. Secondly, did you get the media from Future Shop/Best Buy in Canada? Are those Sony's the ones which were $10/25 and the maxells $40/100?
Given the choice of Ritek crap or Sony, I would definately take the Sony. Too bad you didn't get MIJ Maxell, I got 3/4 spindles MIJ.\
Good luck in whatever you choose.