[Nottingham] HDD bit flips: Anyone seen this before?!

Martin martin at ml1.co.uk
Wed Jul 27 23:04:14 BST 2005


Martin Garton wrote:
> On Wed, 2005-07-27 at 21:56 +0100, Martin wrote:
> 
>>Nearly 200 files give a failed comparison. Looking at two of them, they 
>>have just one bit that has been flipped (md5sum and then cmp to look).
> 
> Are these bits at seemingly random positions in the files or is there
> any apparent pattern?  It is always exactly one bit? And is the bit
> always in the same position within a byte or word or anything like that?

Multimegabyte files (mp3s :) ), and the ones I've checked (ok, very bad 
pun) have always been the lsbit and somewhere mid-file.

Cheers,
Martin


-- 
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Martin Lomas
martin at ml1.co.uk
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