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 Post subject: Recover file from recorder after power off
PostPosted: April 29th, 2015, 19:42 
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Joined: April 29th, 2015, 6:15
Posts: 3
Location: Germany
Hi,


we use a Tascam rack-mounted recorder (SS-R1) to save audio from XLR to CF card in our church. Unfortunately somebody turned of the whole installation while still recording. Due to that the file is not properly saved and "lost" as seen by regular file explorers.

Can you give me some hints how to recover the recording? Testdisk and Photorec found the file but size was 0 bytes. I didn't try other tools since some live CDs seem to have problems with my card readers or the CF card.

If I could get the "position" of the file, I could find it in a dd-image etc. and extract the audio stream by hand.

File system should be FAT(32), CF card is about 4GB.

Thanks in advance,

Philipp


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 Post subject: Re: Recover file from recorder after power off
PostPosted: April 29th, 2015, 20:23 
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Joined: September 8th, 2009, 18:21
Posts: 14945
Location: Australia
If you run CHKDSK in readonly mode, does it find any orphaned clusters?

If you run DMDE against your drive, does the missing file turn up in a FAT32 search?

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A backup a day keeps DR away.


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 Post subject: Re: Recover file from recorder after power off
PostPosted: April 29th, 2015, 21:52 
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Joined: December 4th, 2012, 1:35
Posts: 3779
Location: Adelaide, Australia
I would use DMDE to image the whole card(not partition) and work off that. The card right now is the ONLY copy!
it is also possible it wasn't actually saved :(


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 Post subject: Re: Recover file from recorder after power off
PostPosted: April 30th, 2015, 2:35 
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Joined: April 29th, 2015, 6:15
Posts: 3
Location: Germany
HaQue wrote:
I would use DMDE to image the whole card(not partition) and work off that. The card right now is the ONLY copy!
it is also possible it wasn't actually saved :(



Thanks so far, I'll try this.

I was quite sure, there has to be "any" data since the recorder can't buffer all the recording by itself neither it can write the whole data within a second when pressing stop...


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 Post subject: Re: Recover file from recorder after power off
PostPosted: May 3rd, 2015, 20:06 
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Joined: April 29th, 2015, 6:15
Posts: 3
Location: Germany
Ok guys, I solved the problem. Windows and DMDE showed the missing file without any recovery, but just showing 0 bytes (seems "fine" since the recorder should have created a file but didn't finish). DMDE didn't help my so far (except making an image) but a simple CHKDSK /f brougth the the lost data. Thanks!


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 Post subject: Re: Recover file from recorder after power off
PostPosted: May 3rd, 2015, 23:57 
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Joined: December 4th, 2012, 1:35
Posts: 3779
Location: Adelaide, Australia
great :) you played the CHKDSK lottery and won ;)


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 Post subject: Re: Recover file from recorder after power off
PostPosted: May 4th, 2015, 1:07 
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Joined: March 19th, 2015, 15:01
Posts: 1413
Location: isreal
+1 @HaQue


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