Recovered video files that will not play
Recovery of video files is often very difficult. Many data recovery programs claim to recover video, but but many also fail. Recovery of video from a PC hard drive often works as the video is sequential, but video camera memory is rarely sequential. Hence programs that work on hard disk drives may not work as well with deleted memory chips, or SD cards.
CnW recovery software goes several stages further as has a high success rate for video camera recovery - though development is still on going as more cameras are produced, and more variations discovered.
If you have tried a recovery program from the web that has not returned your video files (very likely the case), do not give up. The CnW Recovery approach is very different and it allows for many variations of deleted files, or just general failure. Download the demo and try the relevant wizard for your type of video. Many wizard functions will display a thumbnail of videos that will be recovered successfully. The log also gives details of the files.
CnW has several wizards, for each type of video. Although optimised for video camera memory chips, they will also recover and reconstruct video on hard drives. The best application to run for many cameras is CnW Recovery's GoPro Recovery program, details here. The licence is include with most CnW licences.
Does Video Repair work?
CnW often sees files that people haved tried to repair with video repair programs. Repair most of the time is impossible because the file was never a video file. It may have been recovered, but did not contain any video information or frame data. This is not a criticism of video repair data, but more of failed recovery processes. Video repair can reconstruct meta data, and allow for files that were not finalised - it cannot recreate video that does not exist.
The CnW Recovery solution is to work with the original storage device to find all relevant parts of a video - and only when that is exhausted, possible recreate indexes and other meta data.