What is the most efficient way to save a byte array as a file on disk in C#?

Question

Pretty simple scenario. I have a web service that receives a byte array that is to be saved as a particular file type on disk. What is the most efficient way to do this in C#?

Answer 1

I had a similar problem dumping a 300 MB Byte array to a disk file...
I used StreamWriter, and it took me a good 30 minutes to dump the file.
Using FilePut took me arround 3-4 minutes, and when I used BinaryWriter, the file was dumped in 50-60 seconds.
If you use BinaryWriter you will have a better performance.