MAM-A Mitsui vs. Taiyo Yuden - Which One?

I am looking for quality blank CDRs to make duplicates of my CDs. I have noticed improvement in playback over original using even Sony Brand. I have done some research here and so far the Mitsui and Taiyo keeps coming up. I can get the Taiyo for as low as $22 for a 100 bundles. While the Mitsui is much more expensive at around $90 per 100 bundles. Why so much price variance? Thanks in advance for your input.