When it comes to artist names, please don't use online kanji translators to get the readings. They are often incorrect. The same goes for readings you find on file-sharing or fan-sites. We need to maintain a higher level of accuracy than they do.
It's Suzuko Mimori, not Suzuko Mi
tsumori. I am finding similar errors on the other release.
http://ja.wikipedia.org/wiki/%E4%B8%...81%9A%E3%81%93
Pasting a kanji name like '三森すずこ' into the VGMdb search bar is usually a good first step in finding the right reading.