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I notice that you mention the Removeable Media feature set.

You may have missed the notice in the minutes of the April 2006 plenary
meeting
that this feature set was 'obsoleted' for ATA8-ACS.
This means that support for the feature set will be frozen as described in
ATA/ATAPI-7.

> http://t13.org/docs2006/e06116r0-Obsolete_RMFS.pdf

Your specific question is still relevant to ATA/ATAPI-6 and -7, but not for
ATA8-ACS and beyond.

Thank You !!!
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Jim Hatfield
Seagate Technology LLC
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             kepler                                                        
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             Available                 [t13] Should or Shall word82[2] and 
                                       word85[2] have identical values in  
                                       IDENTIFY DEVICE response for        
             05/16/2006 12:44          ATA/ATAPI-6?                        
             AM                                                            
                                                                           
                                                                           
                                                                           
                                                                           
                                                                           




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Dear all,
     On page 125 of ATA/ATAPI-6, clause 8.15.42 says that "if bit 2 of
word 82 is set to one, the Removable Media feature set is supported."
     On page 127 of ATA/ATAPI-6, clause 8.15.43 says that "if bit 2 of
word 85 is set to one, the Removable Media feature set is supported."

     The two bits in the IDENTIFY DEVICE response indicates the same thing.
     In my recognition, the two bits have an OR relation because they do
not say "if the bit is clered to zero, the feature is not supported".

     Even though they do not say " if the bit is cleared to zero, the
feature is not supported".  I would like to know whether or not the
Removable Media feature set is supported if word82[2]=0 and word85[2]=1,
or vice versa?
     Moreover, as the subject, Should or Shall word82[2] and word85[2]
have identical values in IDENTIFY DEVICE response?

     The same duplication occurs for word83[13:0] and word86[13:0],
word83[1:0] and word86[1:0], word 84[5] and word86[5], and word84[1:0]
and word87[1:0].

Sincerly Yours,
Kepler



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