i have several files whose content need to be merged into a single file. i have the following code that does this ... but it seems rather inefficient in terms of memory usage ... would you suggest a better way to do it ?

the Util.MoveFile function simply accounts for moving files across volumes

   private void Compose(string[] files)
   {
       string inFile = "";
       string outFile = "c:\final.txt";

       using (FileStream fsOut = new FileStream(outFile + ".tmp", FileMode.Create))
       {
           foreach (string inFile in files)
           {
               if (!File.Exists(inFile))
               {
                   continue;
               }

               byte[] bytes;
               using (FileStream fsIn = new FileStream(inFile, FileMode.Open))
               {
                   bytes = new byte[fsIn.Length];
                   fsIn.Read(bytes, 0, bytes.Length);
               }

               //using (StreamReader sr = new StreamReader(inFile))
               //{
               //    text = sr.ReadToEnd();
               //}

               // write the segment to final file
               fsOut.Write(bytes, 0, bytes.Length);

               File.Delete(inFile);
           }
       }

       Util.MoveFile(outFile + ".tmp", outFile);

}