tracks syncing with different names onto iphone

Just transferred some new CDs onto my itunes (10.2.1), which is running on my imac with mac os x 10.6.7, but when i sync my iphone and ipad some of the songs from the new CDs play a different song from the same album, not the one that is listed. Its not the case with all of them only some. Both my iphone and ipad are also running the latest software updates. When I play the same songs from itunes, everything is normal.
I have tried resyncing, but nothing changes
Iphone 4 Mac OS X (10.6.7)