If you by mistake deleted videos from Panasonic camcorder, do not worry, because it is possible to recover deleted files from Panasonic camera. The best way to recover deleted files from Panasonic camcorder is to use a Panasonic camera video recovery software. Here's a good one:

asoftech.com/articles/panasonic-camcorder-camera-photo-video-recovery.html

You can recover deleted files from Panasonic digital cameras and camcorders. You can also recover lost files after Panasonic camcorder memory card reformat.

Here's some other useful tutorials

forum.001-software.com/pbb/viewtopic.php?f=4&t=178


camera-file-recovery.blogspot.com/2016/08/how-to-recover-deleted-files-from.html

blog2mark.blogspot.com/2015/11/how-to-recover-deleted-videos-from.html