Command line to read disk:
--sectors 8,0 --heads 15 --cylinders 918 --header_crc 0x0,0x0,1,0 --data_crc  0x0,0xa00805,32,5 --format Symbolics_3640 --sector_length 1160 --retries 50 --drive 1
ECC Corrections on cylinder 6 head 8: 3(3)
All sectors recovered after 4 retries cyl 92 head 14
ECC Corrections on cylinder 109 head 6: 6(1)
ECC Corrections on cylinder 117 head 3: 6(3)
ECC Corrections on cylinder 138 head 5: 0(1)
ECC Corrections on cylinder 140 head 3: 6(1)
ECC Corrections on cylinder 142 head 3: 6(2)
ECC Corrections on cylinder 145 head 2: 6(1)
ECC Corrections on cylinder 151 head 3: 6(1)
ECC Corrections on cylinder 155 head 2: 6(3)
ECC Corrections on cylinder 157 head 2: 6(2)
ECC Corrections on cylinder 158 head 2: 6(3)
ECC Corrections on cylinder 184 head 3: 6(2)
ECC Corrections on cylinder 186 head 3: 6(1)
ECC Corrections on cylinder 187 head 7: 6(2)
ECC Corrections on cylinder 188 head 2: 6(4)
ECC Corrections on cylinder 188 head 12: 6(2)
ECC Corrections on cylinder 193 head 3: 6(1)
Retries failed cyl 200 head 11
Bad sectors on cylinder 200 head 11: 6
Retries failed cyl 201 head 11
Bad sectors on cylinder 201 head 11: 6
ECC Corrections on cylinder 202 head 3: 6(1)
ECC Corrections on cylinder 208 head 3: 6(2)
ECC Corrections on cylinder 218 head 3: 6(2)
ECC Corrections on cylinder 237 head 12: 6(1)
ECC Corrections on cylinder 262 head 2: 6(2)
Retries failed cyl 294 head 7
Bad sectors on cylinder 294 head 7: 6
ECC Corrections on cylinder 303 head 5: 6(1)
ECC Corrections on cylinder 404 head 13: 5(4)
ECC Corrections on cylinder 436 head 3: 1(2)
ECC Corrections on cylinder 451 head 5: 5(1)
ECC Corrections on cylinder 469 head 3: 1(1)
ECC Corrections on cylinder 488 head 13: 4(1)
ECC Corrections on cylinder 517 head 13: 5(2)
Retries failed cyl 636 head 11
Bad sectors on cylinder 636 head 11: 6
Retries failed cyl 637 head 11
Bad sectors on cylinder 637 head 11: 6
Retries failed cyl 638 head 11
Bad sectors on cylinder 638 head 11: 6
ECC Corrections on cylinder 647 head 6: 1(1)
ECC Corrections on cylinder 648 head 6: 1(1)
ECC Corrections on cylinder 658 head 6: 3(1)
Retries failed cyl 667 head 6
Bad sectors on cylinder 667 head 6: 1
Retries failed cyl 668 head 6
Bad sectors on cylinder 668 head 6: 1
Retries failed cyl 669 head 6
Bad sectors on cylinder 669 head 6: 1
Retries failed cyl 670 head 6
Bad sectors on cylinder 670 head 6: 1
ECC Corrections on cylinder 671 head 6: 1(5)
ECC Corrections on cylinder 687 head 6: 3(2)
ECC Corrections on cylinder 733 head 3: 5(4)
ECC Corrections on cylinder 762 head 11: 2(1)
ECC Corrections on cylinder 840 head 0: 2(2)
ECC Corrections on cylinder 885 head 7: 4(2)
ECC Corrections on cylinder 887 head 8: 3(1)
Found cyl 0 to 917, head 0 to 14, sector 0 to 7
Expected 110160 sectors got 110150 good sectors, 0 bad header, 10 bad data
39 sectors corrected with ECC. Max bits in burst corrected 5
Track read time in ms min 27.526541 max 4154.385375 avg 44.048534