Can i save video to CameraRoll? Please help me!
Unfortunately, you cannot. Saving videos is not possible in Windows Phone 7 nor in Windows Phone 8. You can save only images so far.
Sorry for my english, I hope you understand me. What can I keep in any - any other folder that is accessible from the outside
Video content created within an app must also be viewed in that app - a number of apps in the Marketplace have this disadvantage.
For more on Isolated Storage, look here: http://www.geekchamp.com/tips/all-ab...olated-storage