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Old 25 March 2012, 22:52   #47
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Originally Posted by mr.vince View Post
I am very sure we've said on many occasions that we can't use/accept dumps made with Disk2FDI; until recently I've not been aware of the other program that actually seems to do the same.
We are obviously talking at cross-purposes here; I have never made any comment about the SPS position regarding Disk2FDI dumps, and my awareness of the ReadADF program began only with this thread.

Originally Posted by mr.vince View Post
As for your find... If your theory turns out to be true, the magic must have been with the drive. I would assume that the data you read now was written with a drive of the same alignment whereas the data you read the other day, was extracted with a drive of different alignment. I think you would get the same results with Disk2FDI, Discweasel, KryoFlux or whatever.
I discovered the "hidden" data while comparing the performance of the Disk2FDI and ReadADF programs running on the same equipment using a disk known to have bad sectors of both the "missing sector header" and "bad sector checksum" type. Your theory that these data were originally written with a drive of the same (or very closely matching) alignment must surely be true, but the test showed that Disk2FDI did not pick them up and ReadADF detected them in only one of three runs.

I am still analysing these captures. When I know more I shall elaborate here.
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