Instruction: Extract information from the supporting document to answer the given question.

Input:
Question: Can I play videos from my laptop using a VLC player and have it display on the tv?
Document: Streaming online videos was sweet without issues. You Tubers will enjoy the features of this player as well. Photo display was on cue. Keep in mind that photographs are displayed in HD. A nice surprise was the clear and uninterrupted play of my music lists. The two second lag time keeps this from being a gamers go to accessory.I like the Veebeam player's stealthy look. It stands out in a good kind of way. The plug and play features of this unit are simple and direct.
I noticed a little bit of clipping of the screen, but otherwise the display was pretty much what I expected, the sound quality somewhat better. I tested a number of youtube videos and several television shows from different media outlets online. (Note: it's not quite as much fun to watch video sites that do not expand to full screen, at least not for me.) Family videos displayed just fine. I only tried playing back one DVD, using Window's Media Player, and it did okay, too.
Once everything was installed and plugged in, there was my desktop on the television, in all its cluttered glory.A little disconcerting, the tv display lags behind the laptop. (This is mentioned in the blurb, so it shouldn't come as a surprise.) I wouldn't even think about using this to surf the internet.
Range is limited to a maximum of 30 feet.Windows Media Center is not supported in full screen at all. You'll just get a blank screen. Windows Media Player also has a problem where a visible horizontal line splits the screen. Veebeam recommends using Quicktime or VLC to circumvent this issue until it can be resolved.There is an advertised two second lag between your laptop and TV.
Also the demands of processing the transmission seemed to make the image stutter and blur. If I used just the laptop, things were smooth on the laptop screen. If I used both, it was blurrier on the laptop screen and on the TV, but worse yet on the TV.The only thing you can watch using their screencasting mode is local videos. You open this up in their dedicated player, so they have to be stand-alone non-DRMd videos.
After coercing the device to finally work (it wouldn't display the desktop, turns out I had to make an exception to my firewall), I instantly noticed that there was at least a 2 whole second lag from what's showing up on my laptop screen, to what's showing up on my TV. I figured this is because 1080p video is a lot of data to stream over a wireless connection, but this is a fatal flaw for someone planning on using this to actually surf the web or play games.
It means I can use it on a new TV and on an older one.4) You can indeed use the veebeam player that comes with the software, but you can also use VLC and other players and contrarily to what some people have said, you can use your computer while streaming a movie. If you are on the play mode, it will work without any problem.
The downside to Screencasting Mode is that it *does* project everything on your screen, meaning anything you are doing on your screen will show up on the television if other people are watching. The other mode you can turn on is called "Video Play-to Mode," which is a video player that shows up on your desktop and allows you to open videos and continue working on your computer.
I tried several H.264 videos (640x360) and there is an incredible degrading in output quality if compared to the direct streaming to PS3 using a media server (but you can always just plug an external USB hard-drive to the PS3 if you don't want to stream). Only with 720p video, the difference is not very noticeable. Audio, on the other side, is great, and there is no audible difference between the player and PS3 streaming.
So if you were hoping to use the veebeam as a wireless second monitor you can forget that.The image quality was a bit choppy as well unless you use the veebeam player, their free media player. When using this I had good quality video and good quality audio streaming from my computer to my tv - but you can't queue up netflix or other such services with this.
Answer: Veebeam transmits whatever is showing on your PC or laptop screen to the TV it's attached to.  Your results will surely be better with an HDMI cable rather than the traditional cables it comes with.  I've successfully conducted seminars via GoToMeeting using my laptop and Veebeam.  It plays the source presentation, including videos and animations.