DCP's creators can read them. In particular, this means copies of the
DCP can be distributed by insecure means: if an ne'er-do-well called
Mallory obtains a hard drive containing an encrypted DCP, there is no
-way that he can play it. Only those cinemas who receive a key
+way that he can play it. Only those cinemas who receive a correct key
delivery message (KDM) can play the DCP.
</para>
The first part is simple: ticking the <guilabel>Encrypted</guilabel>
box in the <guilabel>DCP</guilabel> tab of DCP-o-matic will encrypt
the DCP using a random key that DCP-o-matic generates. The key will
-be written to the film's metadata file, so that should be kept
+be written to the film's metadata file, which should be kept
secure.
</para>
audio would be running at the original speed with the video running
slowly. Hence the audio would drift slowly out of sync. To avoid
this, DCP-o-matic also resamples the audio such that the projector
-will play it too fast by the same amount. Hence it will sound
+will play it too slow by the same amount. Hence it will sound
slightly different but will remain in sync with the video.
</para>