why wont my itunes import my tracks into my library?

I have Windows 8 and recently updated my iTunes. Yesterday I was importing Cd's normally and with no problems. Today I decided to import a Cd (brand new) and it seemed to be doing so without issues, seeing as the tracks were being imported and green 'check marks' were popping up next to each track that was successfully imported. Though when I checked my library, the tracks were no where to be found? I tried going to 'File' and 'Add file to library', proceeded to find the tracks I imported and tried adding them to my library manually... and still no luck. iTunes is acting very strange and im starting to dislike the changes they made more and more. Any help would be greatly appreciated!!