main = new MAIN(buff);
mwmo = new MWMO(buff);
if(databuffer.hasRemaining()
&& chunk.nextChunk(buff).compareTo("FDOM")==0){
modf = new MODF(buff);
}
else
modf=new MODF();
} catch (ChunkNotFoundException e) {
throw new InvalidClassException(e.getMessage());
}
}