7 Sep
2011
7 Sep
'11
5:34 p.m.
On 9/7/11 1:08 PM, John Foust wrote:
At 10:14 AM 9/7/2011, Al Kossow wrote:
This is what I posted on
http://blog.archive.org/2011/09/03/hard-drive-archaeology-and-hackerspaces
--
I wish Chris would have emailed me about the service manual. I have others which were for
earlier drives.
It will be interesting to see how far he gets interpreting the sector format. Hopefully he
can leave the
setup in place until he verifies that the comparator that he built worked correctly by
decoding the
sector data. The description of the circuit that CDC used is quite a bit more complicated
than what he used.
Also, Jason, I have several 80 mb CDC packs, and I can get a correct picture for you.
The one you show is an earlier 200 mb version with 12 instead of 5 disk platters.
someone just pointed this out to me
http://www.archive.org/details/2011-cdc-disk-archaeology-fenton
Chris Fenton's report on recovering data from an 80mb disk pack.
Well, he recovered oversampled waveforms of what was on the disk pack...
It did not say he recovered files, right?