C# - How do I read and write a binary file?

Question

How do I read a raw byte array from any file, and write that byte array back into a new file?

Answer 1

Do you know about TextReader and TextWriter, and their descendents StreamReader and StreamWriter? I think these will solve your problem because they handle encodings, BinaryReader does not know about encodings or even text, it is only concerned with bytes.

How to read text from a file

How to write text to a file

This is an excellent intro to file IO and encodings.