Hi Piete,


>>I cannot see "03/11" anywhere -- did you reverse map "MEDIUM ERROR" ?

Yes, long years of painful experience.  03/11 is reported by the drive when 
read retries are exhausted and a sector is not readable.

>>SO: Read (10) 00 00 7d a6 c0 00 00 80 00
>>... +++++++++ ?1 ?2 ++++++++ ?3 ++ ++ ?4

The 10 byte read command is 0x28, so your orignal command probably was:

28 00 00 7d a6 c0 00 00 80 00

The sector address is in bytes 2-5, 4 bytes total.  Your address is 007da6c0. 
Byte 6 is reserved.  The length is in bytes 7-8, in your case 0080.  Byte 9 
is control, unused in your case.

Hope this helps,

Mike A

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