int batStartBlock = bat.createBlocks();
// get the extended block allocation table blocks
HeaderBlockWriter header_block_writer = new HeaderBlockWriter(bigBlockSize);
BATBlock[] xbat_blocks =
header_block_writer.setBATBlocks(bat.countBlocks(),
batStartBlock);
// set the property table start block
header_block_writer.setPropertyStart(_property_table.getStartBlock());