Sony's video camera market accounts for a high proportion. At present, most of Sony's high-end products have switched to the QT structure of MP4. The latest encoding is HEVC, and the audio-visual effects can be called movie-level. The case this time is instead an old-fashioned camera model PMW-EX280, which uses MPEG2 (older than AVC) video encoding. This model can be said to be a classic masterpiece of Sony in the early days. At that time, Sony imaging The effect is still not comparable to Canon's, so let's take a look at this classic solution.
Fault storage: 120G/FAT32
Symptoms:
The customer described that after the shooting was completed, he made a mistake and formatted it, and then took a short video.
Failure analysis:
As shown in the figure below, you can see that the deletion space is basically large, with 118G. It can be said that the card is useless after formatting, and there is indeed a file of more than 600 M on the card, but the number of fragments of this file is extremely large, 83 pieces. Why there are so many fragments is actually the same as DJI or GORPO, because a small video file for preview needs to be generated. This file is viewed on the small screen of the camera, and high resolution is not required to match the small screen, and The resources occupied by decoding are smaller and meet the requirements of camera hardware. In addition, Sony also has some special files, which may be used by the camera management program, which leads to the problem of queuing writes during the process of generating files, so the final performance is that the fragmentation is extremely serious, not only the number Many and small capacity. Too many fragments will have higher requirements for positioning and reorganization, not only precise positioning but also perfect reorganization. Obviously, such a complicated operation cannot be done by ordinary recovery software!
Troubleshooting:
Use CHS Zero One Video Recovery Program Professional Edition to recover. There is a newly recorded video on the card, just load the sample file directly. If conditions permit, we strongly recommend adding the sample file when scanning, so that the program can be based on the sample file. accurate locating.
STEP1: Scan directly, select high-definition video in the category -> open the sample file
STEP2: Wait for the scan to complete, you can see that the program has parsed out the sample file type, duration, shooting time, rate, encoding and other parameter information, which is helpful for the program to locate accurately.
STEP3: View directly after scanning, the program will list file type, video type, shooting time, camera model, video encoding, duration and other parameters. It can be seen that 924 records have been successfully found, the total size is about 102G, and the level of all video files is 0 (the best effect).
This is the recovery method of Sony PMW-EX280 old-fashioned camcorder after formatting. If you encounter such problems, you can contact us!