Go Back   Steve's Digicams Forums > Digital Cameras (Point and Shoot) > Sanyo

Reply
 
Thread Tools Search this Thread
Old Oct 22, 2010, 8:40 PM   #11
Junior Member
 
Join Date: Oct 2010
Posts: 2
Default

Hi Jim,

I just used the PC Inspector freeware you recommended (http://www.pcinspector.de/default.htm?language=1) to recover an accidentally deleted Canon IXUS movie file (.AVI) from my SD card. It was dead easy, and worked perfectly.

Thanks so much!
Gem
Gemma is offline   Reply With Quote
Old May 31, 2014, 2:26 PM   #12
Junior Member
 
Join Date: May 2014
Posts: 1
Default Eureka!

A friend somehow unknowingly deleted 26 Gb of .mov video files from his SD card. I offered to try & recover them. I tried virtually every undelete & recovery program mentioned in this forum...Pandora, Recuva, Remo, AVS, and more. Most all showed that vast majority of the files had already been overwritten. The files that weren't shown as overwritten, and were supposedly successfully recovered would not open on any media player I tried...quicktime, VLS, Windows, nor any other. I tried the suggestion of running these recovered files through a video converter to change format. Still wouldn't play.

Then, after many hours of pounding at this, I followed JimC's suggestion and gave PhotoRec a try (http://www.cgsecurity.org/wiki/PhotoRec_Step_By_Step)
Friggin' amazing. That's a serious file recovery program. Took almost 2 hours of continuous processing time, but it recovered 26 Gb in 59 files. I was blown away...and every file played just fine in Quicktime.

Researching on the web I found that most of the file recovery programs are simpler programs with simpler algorithms built for small files where lost file data is assumed to still be in contiguous clusters on the storage media. If file data is not contiguous, these programs don't work. They may show a large file as recovered, but their algorithms did not completely find all pieces of the file. So, for example, the video file container headers that originally reported file size when video file was created & recorded, those are recovered at beginning of the file, but size data in those headers don't match the recovered file size, and the video players detect this reported vs. actual size inconsistency and conclude the file is corrupted or unknown format, and will not attempt playback. If saved files are large, and media has some amount of use prior to the lost files being originally written (prior use, as in writing & deleting files causing available space to no longer be all contiguous), then larger files (like pictures and especially video), were never stored contiguously in the first place, and all these less sophisticated file recovery programs won't work.

But that program from cgsecurity.org was magnificient. The user interface is pretty techkie, like a dos window w/ character based commands, but a little patience and you figure it out (along w/ help instructions on website). Like I said, my recovery session cranked away for 2 solid hours to reclaim those 59 files, some over 1.5 Gb. They all played back on Quicktime very first time I tried to play each one. That program terrific!!
idakiteman is offline   Reply With Quote
Old Dec 22, 2016, 2:24 AM   #13
Junior Member
 
Join Date: Dec 2016
Posts: 2
Default

Thanks for this article. here found an absolutte method uFlysoft Card Recover tool, which has the ability to restore deleted photos from corrupt memory card.
JaneJEllis1 is offline   Reply With Quote
Old Sep 10, 2017, 11:50 PM   #14
Junior Member
 
Join Date: Sep 2017
Posts: 2
Default All photo recovery tools are unable to recognize my memory card!!!

I've tried a lot of image recovery tools, including PhotoRec, SoftHow Photo Recovery, Stellar Phoenix, Recuva. I found that all photo recovery tools were unable to recognize my memory card!!! Is my memory card broken?!
michael007 is offline   Reply With Quote
 
Reply


Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off



All times are GMT -5. The time now is 6:33 PM.