/mfm# ./mfm_read -analyze -d1
Board revision B detected
Found drive at select 1
Drive RPM 3556.0
Found matching format Xebec_104527_512B: good count difference 0
Selected head 4 found 0, last good head found 3
Read errors trying to determine sector numbering, results may be in error
Number of heads 4 number of sectors 17 first sector 0
Interleave (not checked): 0 13 9 5 1 14 10 6 2 15 11 7 3 16 12 8 4
Drive supports buffered seeks (ST412)
Disk has recalibrated to track 0                                               
Stopping end of disk search due to recalibration
Number of cylinders 647, 22.5 MB

Command line to read disk:
--format Xebec_104527_512B --sectors 17,0 --heads 4 --cylinders 647 --header_crc 0x0,0xa00805,32,4 --data_crc  0x0,0xa00805,32,4 --sector_length 512 --retries 50,4 --drive 1