If you are referring to hyper compressed modern CD's then you are not alone with this problem. A lot of music is mastered today for car systems and boom boxes. This can help but it won't cure a hypercompressed CD - it may only take the edge off it slightly.
If you only like Metallica, Green Day, Arctic Monkeys, Fratellis and such fare then unfortunately you are in trouble - you may want to search for Vinyl - usually these are not mastered so badly but you are looking at significant effort and cost to try to get better source recordings.
If you only like Metallica, Green Day, Arctic Monkeys, Fratellis and such fare then unfortunately you are in trouble - you may want to search for Vinyl - usually these are not mastered so badly but you are looking at significant effort and cost to try to get better source recordings.