On Sun, 24 Jan 2016, Maciej W. Rozycki wrote: > "Note: Previous ATA specifications were unclear about the error conditions > that this command may indicate. Some implementations do not indicate any > errors for this command even when the command fails. However, most of > these implementations do fail media access commands if a valid CHS > translation is not in effect." > > -- which is (the latter sentence, that is) obviously what you've been > observing with your WD drive.
Furthermore: "Note: Some ATA-1 devices require that this command be issued prior to media access." Maciej
