Why would my video not play?

I shot a video on my Nikon Coolpix S3000 and I transferred it to my computer, but it won't play, an error message pops up every time I try to play it and says "no video device was detected" I really don't understand because the video is recorded already why does it need a video device? It was an WMV file. Can someone help me? Why won't this play?
>>> Why would my video not play?

How to choose a new camera?

I've looked on this site, and several others, and don't feel like I'm finding the answers I'm looking for.

I've had Kodak Point-and-Shoots for years and was very happy with them overall. However, they were lousy in low light and action scenes. With small children and pets that won't sit still that I would like to photograph… I purchased an Nikon Coolpix L810 thinking it was a bridge camera (someone here on another post told me it wasn't). Bottom line, it sucks. I thought I did a lot of research prior to that purchase, but I still missed something somewhere.So, I'm looking for a replacement.

This is my hobby that, while I am serious about it, don't expect to parlay it into a career. I need a longer zoom, as my daughter skates and I wanted a good camera to be able to photograph her from the stands. Built in flash, decent battery life (one positive I can say for the Nikon is that it doesn't eat batteries like my last Kodak did), uses SDHC memory cards, good in low-light situations, good action shots, under $250 preferred.

If you cannot advise on a particular model, can you comment on a brand I should gravitate toward? I'm leaning on trying a Canon this time, but wonder what others have experienced.

Thoughts would be appreciated. Thanks.
>>> How to choose a new camera?

Can you take in a Nikon l120 into wembley arena?

Can you take in a Nikon l120 into wembley arena?
>>> Can you take in a Nikon l120 into wembley arena?

Which is the best point n' shoot camera among these 4 models?

Nikon Coolpix S6200, Nikon Coolpix 6400, Canon IXUS 125 HS, or Nikon S100?
and why?
>>> Which is the best point n' shoot camera among these 4 models?

Can i create a bokeh effect with my camera?

I know how to do it i'm just not sure if I'll be able to with my camera. I have a nikon coolpix s6300. Should i try it, or is it not even worth it to try?
>>> Can i create a bokeh effect with my camera?

Is COOLPIX L810 NIKON worth buying?

Is COOLPIX L810 NIKON worth buying? Here at stores around where I live they sell for 175€ or in dollars for 230$.
I just want a camera that will last for some time - few years and will take pretty good pictures. But I have two lenses lying around at home (CANON ZOOM LENS EF 80-200mm 1:4.5-5.6 ULTRASONIC and CANON ZOOM LENS EF 35-80mm 1:4-5.6 ULTRASONIC) so maybe I should buy some other camera that will fit those lenses? I don't want to give a fortune for a digital camera.

Thanks for your answers in advance.
Added (1). Which digital camera do you recommend me to buy in the same price range?
>>> Is COOLPIX L810 NIKON worth buying?

Buying a new digital camera?

I want to buy a new digital camera as I am visiting kashmir. Budget-7000-9000Rs.
I want to know:
1)what to see before buying?
2)which is better-sony cybershot, nikon coolpix, canon?
3)what amount of memory should I buy as memory card?
>>> Buying a new digital camera?

Which are the best Nikon Coolpix digital cameras?

I'm wanting to purchase a Nikon Coolpix camera but I'm not sure which one's are best… I'm wanting something that's good at picking up details on small intricate items but I also want something that's great for taking long distance pictures like scenic pictures of the night sky. I'm wanting something around 12MP - I've looked at the L100 and the S6100 but I'm just not in touch with cameras!

Thank you
>>> Which are the best Nikon Coolpix digital cameras?

Comparison between Nikon L810 and Canon Powershot SX500?

Earlier this year, I decided to upgrade my Kodak Point-and-Shoot to a bridge camera. I wanted the SuperZoom, plus the ability to take action shots, shots in low light, and have more options as to the quality of the photos. I am a hobbiest, not a pro by any means. I primarily take action photos (sports), photos of my children, photos of my pets, and outdoor scenery.

I bought a Nikon Coolpix L810 (June 2012) and HATE IT.My shots are always blurry, whether I use a tripod or just hold the camera. Outdoors, the colors are rich and lush. Inside, the photos are grainy and too warm in tone. The zoom never wants to focus at full zoom; sometimes the shutter won't engage. I frequently miss shots because of those two reasons. The flash is either Auto or Off -- many times the flash doesn't even go off, even though I know I'm in a low light situation. I've tried different settings (all preset, no manual controls) and nothing seems to help.

I was looking at a Canon Powershot SX500 as a replacement. I hate to spend the money (my budget was around $200 when I bought the Nikon; this camera runs about $250) but I'm so unhappy with the Nikon (I have only owned Kodaks before this).

Can anyone help with what I should do here? Would the Canon be a better camera or would it be about the same and I'd be in the same boat that I am now? Thanks.

Coolpix L810: http://www.bestbuy.com/site/Nikon---Coolpix-L810-16.1-Megapixel-Digital-Camera---Black/4861063.p?skuId=4861063&id=1218555766785

Powershot SX500: http://www.bestbuy.com/site/Canon---PowerShot-SX500-16.0-Megapixel-Digital-Camera---Black/6364218.p?skuId=6364218&id=1218731589757
>>> Comparison between Nikon L810 and Canon Powershot SX500?

Nikon P510 or Nikon D3100?

I'm getting my first camera for my birthday. I love taking pictures. But I can't decide between these two. I've previously used our family canon 600d which is great. These two nikons are also around the same price where I live. I love the p510's zoom but the other is a dslr which obviously means better images? Help!
P.s I'd like to take pictures when we travel, which one would be better for that?
>>> Nikon P510 or Nikon D3100?