Database Confusion

Question

I connected to an Access Database for my C# application which went well and the database was automatically copied to my Root colder which is in Documents/VisualStudio2010/Projects. When I created a Dataset it was automatically copied to Documents/VisualStudio2010/Projects/Name of My Project/Name of My Project/bin/Debug.

Now I have two different database files in my project, the 1st which is in the project is where i can make changes and it will reflect in Visual Studio, the 2nd is where changes made in the Visual Studio reflect even though it doesnt in the dataset. Please I need help with understanding this weird situation.