You can review your videos on your phone with the gallery that comes with your device.
But if you wish to look at the file itself without a file manager system on your phone;
1.) Plug phone into computer
2.) Pull down the notifications tab
3.) Click on "USB connected" item
4.) Click mount
5.) Look at contents of your MSDHC card on your computer
If you need any other help, please don't be afraid to look around or ask
ok i see it in the gallery now, i have noticed that sometime pictures and in this case videos don't always show up right away in the gallery. but thanx for your help