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Marc Kupper
Joined: 12 May 2009
USA
Posted: 13 May 2009
I'm guessing the data recovery bar is adjusting the buffer size used for copying with "best data" being a small buffer and "fastest data" being a large buffer. If that's the case then what are the buffer sizes?

Are you varying the buffer size at all for retries? For example, if you are copying away 8mb at a time and get a read error then you could try it as eight 1mb transfers, if one of those fails then 128kb transfers, and keep working your way down. I did divide by eight rather than two to speed up the reduction of sizes.
Roadkil
Joined: 28 Mar 2008
South Australia
Posted: 12 Sep 2009
Hi there... basically the best data recoveyr is a sector by sector recovery of the data (512 byte chunks) and for fastest is copies the data in 1 MB chunks and if there is any corruption it just copies the good parts of the 1MB to the target and moves on.

hope that explains it well enough!

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