Just bought a generic 16gb flashdrive , so I moved some of my picture folder onto it with no problem , then I started moving couple of my video files which are priceless to me , because they contain video clips of my son from the day he was born , after all have been transfered (at least I thought so) I opened removable disk F (flash drive) , I see all picture folders in order but my video folders are empty ,the folder icons are there but they dont contain any video .Now I dont have those files on my computer neither on the flash drive .
Can  anyone  help me with this ,is there anyway I can recover those files ?
Please help!
Thank you kindly
Do not copy or remove anything from the flash drive otherwise data recovery will be impossible.

Go to http://www.pcinspector.de/default.htm?Language=1 and download PC inspector.
Install the program and run it.

Click on the red cross after the language selection and click on the top left button "Open drive"
Go to the "Physical drive" tab. Click on "Find LOGICAL drives" and put the lower slider all the way to the right.

Go back to "Logical drive" and select the memory stick. The green V should LIGHT up.

Press the green "V" and you'll see a list appear with "Deleted" and "recycle", etc. Here you can find and recover your files.

This program has a really bad interface but I know it does a pretty good job restoring files from flash drives. You might be able to reach your files without taking all of the above steps.. I haven't used the program in ages and you'll have to learn by trial and error. Once you GOT it down it's really simple and effective, THOUGH.

If your data is absolutely invaluable and you do not feel like experimenting, contact a data recovery service. Prices will be steep: How Much Does Data Recovery Cost? (Click)