Breakdown of 120 GB iPod classic and lost all memories

Question

I have bought a 120 GB ipod classic since 2008.
Yesterday my ipod had a breakdown and all of my music, video, etc. were lost.
What's more, my computer cannot sense my ipod now.
What should I do?

Answer 1

Kevin, if you look at the last paragraph of the article Niel linked to, it explains that there are two different types of calculations used when determining disk capacity - one using Base10 math (our everyday use) and one using binary (a computer's basis for all calculations).
The "computer" definition of a GB is 2^30 bytes (or 1,073,741,824 bytes). Hard drive manufacturers define a GB as 1,000,000,000 bytes (notice the 73 million byte difference). Multiply the difference by 120 (the size of your iPod in GB) and you get just under 9GB (the difference between the expected size and the size as reported by the iPod (and your computer). Your iPod really is 120GB by hard drive manufacturers' definition (120GB is 120 billion bytes which equals 111GB by computers' calculations).
Yes, this is marketing but, this is true of ALL storage devices (hard drives, flash memory, etc.) not just iPods. This has been happening for over 20 years. If you look at your PC's hard drive capacity you will notice that it is lower than was marketed as well (if you have a 500GB drive, it will likely be reported by the computer as somewhere around 460GB).