Don't panic! This often depends on what have you done to this camera after the deletion.
The deleted files often are not completely destroyed as we normally think after the deletion process. They are still there and become invisible. So, you should always act carefully to get back your deleted videos.
1). Pick out the inner memory card of this digital camera and never save anything new on it in case of data loss.
2). Insert it to your computer via a card Reader and select a proper memory card data recovery program to restore all your deleted videos back. Different data recovery programs would work differently on your camcorder. So, you may first try some deleted file data recovery freeware at first, such as iBoysoft Data Recovery, etc. Here is a helpful tutorial to recover deleted files.
3). Save and back up these restored files on different places or locations in case of data recovery failure.
Next time, you should never be so careless about your important files and never forget to back them all up.
