Quote:
Originally Posted by Nataliecuteiful
MobiError: Unknown book type: '\x81\xc4\xde\x02|\x8c"\x08'
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We will probably being seeing that pattern often in the future.
It comes about because while MOBI and KF8 files have the string "BOOKMOBI" at offset 60 decimal (3c hex), encrypted KFX files typically have that specific binary data as can be seen in
this post. (Although checking the first 8 bytes for "\xeaDRMION\xee" is a more reliable indicator.)