DVR Data Recovery - Seems Like Avtech 763MA V048

[Amarbir[CDR-Labs]]

Hi Folks ,
The Case Is Like This .The User Had This DVR Working With a 160GB HDD IDE Connected To It .They Formatted The HDD By Connecting To a PC Outside " This is What inputs i Got From a Person Who Gave Me This Case " .Then The Installed The Same HDD Into The DVR And The DVR Started The Recording .Now They Like To Retrieve Some Footage Back .The Native hdd was bad sectored a bit and i cloned the same to another hdd without to much hassels .Connecting The HDD To a Windoes Based PC Shows No PArtitition ,This Means its a non standard prop file system .I Furthur tried to check the same in rstudio but it does find files but no file system ,No fat no ntfs and no linux and mac stuff .Checking The Same with a hex edited gave me a idea its prop file system .Has anyone of you tried any data recovery from this kind of a file system .

[dmarques]

Try to check in RAW if you can see headers from the most known video files.

[Amarbir[CDR-Labs]]

Try to check in RAW if you can see headers from the most known video files.

Well,
Rstudio did The Job .But i think its All BS .Anyone anywhere Any idea ? .Any Software Thats Made To Grab The Files Off this HDd And Dump it Into a HDD ? .

[dmarques]

And if you analyze it manually, do you see any good headers?

[BlackST]

Usually DVR have "proprietary" file system AND encoding (this is the funniest part)

Unfortunately the request is for a "click and recover my videos" from a standard filesystem that is not usual (less than less if instead of "econo" chinese boxes it is let's say a Cisco or high end system). Forget the SW stuff that work with "KNOWN" file systems as I have seen only 2 DVR that used Linux derivative FS up today.

I'm afraid you have to work out from raw data the framing and boundaries of the footages and then intrepretate what encoding was used, then recover "fragments".
Final note : I have worked with dozens of DVR data and each case was one by itself (also because of user configuration i.e. quality, timing etc.).

If the DVR is high end brand you can expect some help from the manufacturer (NOTE : they CAN ask a fee "per incident" to help you !) , I'm quite sure it doesn't apply to "el cheapo" stuff.

Good luck.

[Amarbir[CDR-Labs]]

Usually DVR have "proprietary" file system AND encoding (this is the funniest part)

Unfortunately the request is for a "click and recover my videos" from a standard filesystem that is not usual (less than less if instead of "econo" chinese boxes it is let's say a Cisco or high end system). Forget the SW stuff that work with "KNOWN" file systems as I have seen only 2 DVR that used Linux derivative FS up today.

I'm afraid you have to work out from raw data the framing and boundaries of the footages and then intrepretate what encoding was used, then recover "fragments".
Final note : I have worked with dozens of DVR data and each case was one by itself (also because of user configuration i.e. quality, timing etc.).

If the DVR is high end brand you can expect some help from the manufacturer (NOTE : they CAN ask a fee "per incident" to help you !) , I'm quite sure it doesn't apply to "el cheapo" stuff.

Good luck.

Well,
I Nailed This One And Recovered 100% Data .Yup Its a Prop File Format God i Should Do More DR Than Repairing

[BlackST]

You owe me a beer (the entire barrel !!)

[Amarbir[CDR-Labs]]

You owe me a beer (the entire barrel !!)

Haa Haa ,
That Horsie Is Gonna Gobble it BL .

[shahij]

Hi,

How did you manage to recover the files?

I have here with the same scene...

The drive was formatted to NTFS using WinOS, later brought back the DVR & configured and started recording. The felt they require some data and asking for recovery...!