Not found file

[AkioSarkiz]

What's the problem?

Code:

var inputFile = new MediaFile(@"E:\temp\test\video.mts");
var outputFile = new MediaFile(@"E:\temp\test\video.mp4");

if (File.Exists(inputFile.Filename))
{
    Console.WriteLine("Exists!");
}

try
{
    using (var engine = new Engine())
    {
        engine.Convert(inputFile, outputFile);
    }
} catch (Exception e)
{
    Console.WriteLine("Error! Type: " + e.GetType().ToString());
}

Console.WriteLine("Finished!");
Console.ReadKey();

Output:

Exists!
Error! Type: System.IO.FileNotFoundException
Finished!