manual/include/copying-the-interchange-folder.html

<p>
  All media in a session folder is stored in a sub-folder called
  <samp>interchange</samp>. Below that is another folder with the name
  of the session. You can copy either of these to another location and
  use the files within them with any other application, importing them
  all into a project/session. You will lose all information about regions,
  tracks, and timeline positioning, but all the data that Ardour was working
  with will be present in the other DAW. Nothing below the interchange
  folder is specific to Ardour&mdash;any DAW or other audio/MIDI
  application should be able to handle the files without any issues.
</p>