Large Inconsistency in hard drive

Hello Apple Forum!
I have had my rMBP for just over a year now. (Its a 15", 10.1)
I have had some troubles with the graphics with it but after i went back to Mavericks, it helped a lot.
Lately i have been wondering why there is so large inconsistency on the hard drive (See figure). All the info's
claim a different amount of GB. Especially from Macintosh HD on desktop which says 129,03 available.
Please help me understand this problem. I do not see other with the exact same problem.
Regards, Victor

Alright, I've tried that now.
Did not seem to make much of a difference, although it found some extra GB's somewhere..
- thanks a lot, but i still have a major difference... :S

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A disassembled and labeled 1997 hard drive. All major components were placed on a mirror, which created the symmetrical reflections.
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See page 38.
http://manuals.info.apple.com/enUS/MacBook_Pro_15inchLate2008.pdf
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http://www.ifixit.com/Guide/First-Look/MacBook-Pro-17-Inch-Unibody/618/1
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Large Inconsistency in hard drive

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