DeflateStream

 
string inputFilePath = Path.Combine(Environment.CurrentDirectory, "mamaSaid.mp3");
string outputFilePath = Path.Combine(Environment.CurrentDirectory, "mamaSaid.cmp");
FileStream inputFS = new FileStream(inputFilePath, FileMode.Open, FileAccess.Read);
FileStream outputFS = new FileStream(outputFilePath, FileMode.Create, FileAccess.Write);
DeflateStream dfDest = new DeflateStream(outputFS, CompressionMode.Compress);
int nextByte = inputFS.ReadByte();
while (nextByte != -1)
{
dfDest.WriteByte((byte)nextByte);
nextByte = inputFS.ReadByte();
}
dfDest.Close();
outputFS.Close();