Video files loaded from laptop are not supported by samsung s 5620 monte.

You are right when you say "video from the laptop are not supported" by your mobile. Before you transfer them into your phone, you need to convert the video files. 3gp is the standard for mobile handsets, but there are many files which support on mobile phones. Your handset will support 3gp and mp4 file format videos. So before you copy the video files, convert them using any kind of video converter like xilisoft video converter, you can download them from the net. (search them on the 4shared.com using the keyword, xillisoft full with key, serial.) and download the application, install it in your pc and you are ready to go. Good luck. Thanks for using FixYa.