--mm cc  chi
++000    00000nmm a2200000 a 4500
++090    |a797.9 0896
++245 00 |a敦煌 |h[VCD]
++250    |a2.0
++260    |a甘肅:|b甘肅音像,1998.
++300    |a1 VCD:|b有聲,彩色;|c4 3/4吋.