ISD_W_PAGCNT
isize = (header[isd+ISD_W_PAGCNT+1]*256 +
header[isd+ISD_W_PAGCNT]) * 512;
isize = (header[isd+ISD_W_PAGCNT+1]*256 +
header[isd+ISD_W_PAGCNT]) * 512;
mopFilePutLX(header, 0xd4 + ISD_W_PAGCNT, i, 2);