Sanyo, this brand of cameras is really rare. In fact, there are only two companies in the field of Japanese cameras, one is Canon and the other is Sony. All other manufacturers basically use the solutions of these two companies, except of course the weirdo Panasonic! Let’s take a look at Sanyo’s recovery case.
Fault storage: 16G SD card
Fault phenomenon:
I backed up a piece of material during normal shooting, but when I backed it up again, it showed a "redundant loop error" and could not be read. However, it can be recognized normally when re-plugged and unplugged, and the same error message is reported when copying.
Failure analysis:
Generally, the "redundant loop error" reported under Windows is usually caused by bad sectors in the storage medium, and the card type is usually caused by bad blocks. In this case, you need to use professional equipment to image the card first, and then scan the image.
Troubleshooting:
There are not too many bad sectors on the card, they are concentrated in the front part. Sanyo's solution may be based on Sony's old cameras. The moov structure is stored in the front part. In addition, due to the use of FAT32, the FAT table part is also damaged.
Since there happened to be a good piece of material, I directly used the CHS Zero One Video Recovery Program Advanced Edition to scan it.
STEP1: Select the logical disk and right-click -> Scan Settings -> Scan Category Select HD Video -> Sample File Directly open the good file (note the three problems with the sample file, please refer to another post for details) -> Scan
Why use sample files? This reason has been mentioned many times before, so I won’t go into details. If you are interested, you can read other posts.
STEP2: Wait for the scan to complete. You can see that the program has parsed the detailed information of the sample file, which can provide an accurate model reference for the program to locate and reorganize fragments.
STEP3: Check directly after the scan is completed. The program will list the video file level, shooting time, camera model, video encoding, duration, length and other parameters. You can see that the program has found 301 videos with a capacity of 14.01G and all levels are 5. The reason has been mentioned before. The bad sectors in the front cause all MOOV to be destroyed. Since the L5 level file is only a data area, it cannot be played directly. It needs to be saved first and then repaired using the repair function of the advanced version before it can be played.
STEP4: Click Video Repair to switch to the repair interface, click Sample File->Damaged File->Repair, and wait for the repair to be completed.
STEP5: Check the repair results. You can see that after the repair is completed, the repair level is listed as four stars (the best effect). Most files are normal after repair. All this shows that the repair effect is very good, and viewing the file also shows this. The video and audio encoding of the file and the sample file remain consistent with the original encoding, and the restoration and repair work is completed!
This is the recovery method for Sanyo card with bad blocks. If you encounter such problems, you can contact us!