i've used disk recovery software, i thought the name of the company was quantum, but that's apparently not right. Even if the disk is damaged some files (or parts of files) can be extracted, i'd say surf the shareware sites looking for one with good reviews. they can work, but it's been years since i've needed one so i can't reccomend a particular package.

the stuff i used cost about $30 bucks... i would stick to the 50 dollar price range.

good luck.