Please help Save binary data using FileWrite

[VETRA]

Please help!
I'm trying to save binary data using FileWrite in Borland C++ Builder 6.
I'm reading the DATA from file like this:

   int iDATAHandle = FileOpen(filename, fmOpenRead);
   DATA = new int [Size];
   char *buf = new char[2*Size];
   FileRead(iDATAHandle, buf, 2*Size);
   for (int ii=0;ii<Size;ii++) 
       {DATA[ii] = Shortint(buf[2*ii])*256 + Byte(buf[2*ii+1]);}

then I do some operations with the DATA[i]
and then try to save it in the same manner:

   int iDATAHandle2 = FileCreate(filename2, fmOpenWrite);
  unsigned char *buf1 = new unsigned char[1];
  unsigned char *buf2 = new unsigned char[1];
  for (int i=0;i<Size;i++)
    {
     buf1 = (unsigned char *) (DATA[i]/256);
     buf2 = (unsigned char *) (DATA[i] - (DATA[i]/256) * 256);
     FileWrite(iDATAHandle2, &buf1, 1);
     FileWrite(iDATAHandle2, &buf2, 1);
    }

But the data is saved incorrectly. Looks like something else is saved, not my data.
What is wrong with it?

Thanks in advance!

[Athar]

Why are you using dynamic allocation for buf1 and buf2? Why two buffers anyway?
In line 5+6 you cast integers to pointers. That makes no sense.
In line 7+8 you write the first byte of each of said pointers, which also makes no sense.
You probably meant this:

unsigned char buf[2];
for (int i=0;i<Size;i++)
{  
  buf[0]=Bin[i]/256;
  buf[1]=Bin[i]&255;
  FileWrite(iDATAHandle2,buf,2);
}

[VETRA]

I used two buffers because i need to swap bytes sometimes (producing files for Win and for unix).
But your method does the same and much easier!
Thanks again! It works!