I had pre-ordered this CD before the track listing became available online and waited for a remix of Britney's released singles. I was disappointed that it contained remixes mostly from the 'In The Zone' album and I already had the bonus remixes (I'm Not A Girl, Not Yet A Woman, Stronger, Baby One More Time, Don't Let Me Be The Last To Know) from special editions of Britney's first three albums. Toxic, Me Against The Music, I'm A Slave For You are enjoyable and it's worth buying this release for the Early Mornin' remix alone which is excellent! But the remaining 'In The Zone' remixes are dire. The tracks on the bonus Greatest Hits CD are quite similar! The album is cheapened by the inclusion of the bonus remixes which were previously released anyway (if you haven't got them they're excellent remixes so you'll probably love them - I've just had them so long I've tired of them!). I love Someday I Will Understand and since it was not released, this remix is the closest I can get to it. Overall, I'm a bit disappointed with this album. I LOVE Britney and cannot wait for her new album, but I feel this was an attempt by her record company to throw something together and roll in a bit of money while Brit's off having babies!