3dscapture.com

Hello, for those of you who are planning on recording gameplay to post onto Youtube or other sites similar, I was wondering on how to make a background. Like how some people have the actual 3DS console image as their background and the recording of the gameplay on the screen of the 3DS without the windows around it ( the windows with minimize/maximize options)

I'm going to guess (because I haven't yet received mine and haven't been able to mess with this option) that people just find a stock photo online somewhere and make that their desktop background. The website for a bunch of games will have hi-res images of the starting screens or something similar, so it's usually easy to find.

Again, I don't know for sure, but that's my guess.

Recording the footage, then inserting a picture behind the layer in an editing program like Sony Vegas.

Exactly what Mithril said. It's all via Photoshop/GIMP. Say you're playing ACNL, you go to Google and find a picture of ACNL you like, or use your own with a screenshot, do some editing, add in any information you want (villagers, bells, projects, etc anything) and then add it under the footage. Really simple stuff.

Thank you for the answers, I used the free trial of an editing software called Camtasia and that works fine, however its only a 30 day trial and obviously i would be needing it for more than 30 days. Another program I found called Xsplit works great, however to get the effect of the background of a 3DS I would need to be able to record the top as one video and the bottom as one video.
Sooo, i was wondering if it was possible to have two monitors and then by using screen capture program to record both screens, but my question is if I did that would it make it so that the top screen of the 3ds willl be considered one video and the bottom screen another.
Thank you for your time sorry for any inconvenience

Camtasia is personally what I use, since my mind can't comprehend Sony Vegas.

What I would do if you need both to be a separate video is add the video in twice. Then, for one video, crop the top screen off, then crop the bottom screen off for the other, and shift them around as you'd please.

I have been using Sony Vegas for awhile now and what you want to do is not hard at all if you need me to make a quick video explaining this for you I can. Just reply here or send me a PM and I will put something together to show how.