@Override public boolean writeQuality(byte[] qual,int offset,int length) throws IOException {
  if (mQualSize + length <= mLimit) {
    if (length > 0) {
      mQualData.write(qual,offset,length);
      mQualSize+=length;
      mChecksumQual.update(qual,offset,length);
    }
    return true;
  }
  return false;
}

@ Override public boolean writeQuality ( byte [ ] qual , int offset , int length ) throws IOException { if ( mQualSize + length <= mLimit ) { if ( length > 0 ) { mQualData . write ( qual , offset , length ) ; mQualSize += length ; mChecksumQual . update ( qual , offset , length ) ; } return true ; } return false ; }
writes quality bytes to disk .
