I am trying to use the Zencoder transcoder (am NOT using FFmpeg). When clicking the Transcoder tab in admin/configuration/media , I get the error message:

Fatal error: Interface 'transcoder_interface' not found in [Drupal Root]/sites/all/modules/media_zencoder/transcoders/media_zencoder.inc on line 14

FYI, my status report also throws an alert that FFmpeg is not installed (which is true).

Thanks!