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 Post subject: Data Recovery Imager Comparisons
PostPosted: April 20th, 2017, 8:41 
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Joined: February 9th, 2009, 16:13
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Location: Ontario, Canada
For those who might be interested and aren't already aware, I've logged the results imaging the same Toshiba hard drive supplied by Spildit using various data recovery imagers.

Hardware Data Recovery Imager Comparrison

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 Post subject: Re: Data Recovery Imager Comparisons
PostPosted: June 13th, 2017, 3:07 
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Joined: February 13th, 2014, 12:13
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Missing Atola!!!!

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 Post subject: Re: Data Recovery Imager Comparisons
PostPosted: June 13th, 2017, 8:50 
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Joined: December 8th, 2010, 11:37
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Location: Ottawa, Canada
My results with the DFL-SRP (DDP) are discussed in Spildit's forum, and were bizarre, to say the least. I ran three tests; the first under Windows 10 was cancelled because it appears that DFL-SRP is not compatible with Win10, even though it seemed to be working normally. (DFL does not claim it's Win10-compatible.) The second was run on a PC running Windows 7 and completed in 11 hrs with zero errors -- not plausible. It was using using a scavenged 250GB drive as a target disk. The third was run on the same PC with output to a file rather than a hard drive, and it completed in just over 11 hrs and had 81 unreadable sectors -- again, not plausible.

Spildit has speculated on the causes for these results in the thread cited above and I returned the patient disk, the clone from the second test, and the image from the third to him for analysis, but the package has still not been received after 4 and a half weeks. Can it get any weirder?

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 Post subject: Re: Data Recovery Imager Comparisons
PostPosted: June 13th, 2017, 12:56 
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databack wrote:
Missing Atola!!!!


I wouldn't say he's really "missing" it.

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 Post subject: Re: Data Recovery Imager Comparisons
PostPosted: June 13th, 2017, 13:22 
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Joined: December 19th, 2006, 8:49
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Well, i think that as soon as I recieve the package i will be able to confirm if the image/clone done with DFL is indeed a "perfect" clone of the original drive or not.

If the DF clone is indeed a "perfect" clone (meaning it did get all sectors without error) then this will simply mean that the drive for some reason allowed a perfect read of all sectors on that particular time when it was cloned. This is not that rare with those Toshiba models with "damaged" surface/heads. Sometimes once in a while they will allow a perfect full read of all of the surface. I've saw that more than once with Victoria surface scans on Toshiba 2.5 drives of the same series.

The "strange" thing is that for this particular test drive we were assuminig the existence of media/platter damage instead of dying faulty heads.

So there is the possibility that DFL is not correctly stating the sectors that it's really copying out without defect to the image file/clone...

Only way to be 100% sure now is to compare the image file of DFL with the image file of HRT. Also i intend to re-do the image with HRT-DRE as soon as i recieve the drive back.

Regards.

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 Post subject: Re: Data Recovery Imager Comparisons
PostPosted: June 25th, 2017, 5:50 
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Joined: August 15th, 2006, 3:01
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Location: CDRLabs @ Chandigarh [ India ]
Well,
I have Received a MRT Ultra And I Have Already shot a Unboxing Video With My Inputs To It .I Would Then Be Doing 2 More Videos On That One Setup An Initial Registration and second one is working around with the tool .I have all the tools pc3k , dfl and mrt later on i am planning to do a real life comparison of the tools .I do not like what you folks are doing .What you are doing is that you are taking a degraded drive and then trying to image it on different tools without understanding that the drive is getting worse by every attempt .I would not be doing a comparison like this but its going to be different .

Some Videos On My youtube Channel -> https://www.youtube.com/channel/UCbIeLF ... TQu_QSCsgQ

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 Post subject: Re: Data Recovery Imager Comparisons
PostPosted: June 25th, 2017, 10:45 
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Joined: December 19th, 2006, 8:49
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Location: Portugal
Amarbir[CDR-Labs] wrote:
(...)I have all the tools pc3k , dfl and mrt later on i am planning to do a real life comparison of the tools (...)


Sure, we already know that you are better than anyone else !

Amarbir[CDR-Labs] wrote:
(...)I do not like what you folks are doing .What you are doing is that you are taking a degraded drive and then trying to image it on different tools without understanding that the drive is getting worse by every attempt .I would not be doing a comparison like this but its going to be different .
(...)


The one who doesn't seam to understand is you. My test drive was not getting worse by every attempt. It was a stable drive with a patch of bad sectors on some spots of the platter. Very typical on those Toshiba models as explained. You could image it for hours and the heads wouldn't die, even on the same damaged spots, as show on the "test". Maybe you should start recoverying more data on those Toshiba first so that you will know better what to expect from them ?

:mrgreen: :mrgreen: :mrgreen:

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