I have not seen this with rhythmbox. It happens with totem consistently whenever playing a ~10 track directory. It stops playing at a random track and requires the user to restart nautilus to continue playing (the progress bar is at the bottom, the time elapsed in the track is "00:00" and play is clicked, but will not play (even if I click pause and play again, even if I choose another track).
** Changed in: totem (Ubuntu) Status: Needs Info => Unconfirmed -- Totem stops playing halfway through the playlist https://launchpad.net/bugs/81993 -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs