Winter - I don't know where to get charts however your question makes me think you might be able to aid me a bit in my HDD Crash problem. Hope so, if not no worries and I hope you find what you're looking for!!
PROBLEM:
Hello, I have a Seagate Momentus 500G 7200.4 G-protectd laptop HDD in a MacBook that stopped operating completely recently. My system froze and when I rebooted there was no drive (got the Mac flashing folder with question mark icon and the steady beeps).
I actually took it apart after practising on a matching Seagate 250G one that I had around so I could se if there were any obvious differences and look for what the problem might be.
The reading arms were locked at the inner radius on the 500G so I released them and put it back together. It actually worked at first and the Apple icon appeared but it didn't last long enough to boot up.
I'm thinking that the disks may have become slightly less perfectly flat and if they can be perfectly flattened then I'll be able to get my 20 years of data off this drive!
I have a new Seagate 500G installed but not the G-protected one (conflicts with the built-in MacBook G-protection technology apparently).
I'm thinking of putting the HDD disks into phone books with weight on them for a few weeks as I can't think of any way to flatten them perfectly.
Is there some kind of laser reader that you can slide disks into that will read them regardless of condition and be able to order the data properly so as to allow file recovery?