Found format "ibm"
PLL Parameters: period_adj=5% phase_adj=60%
T0.0-0.1: IBM-MFM DD (9 512-byte sectors, 4608 bytes)
T1.0: IBM-MFM DD (8 512-byte sectors, 4096 bytes)
T1.1-39.1: IBM-MFM DD (9 512-byte sectors, 4608 bytes)
T40.0-79.1: Unformatted*
T80.0-83.1: Unformatted