[fix] duration substracting can actually cause to panic, 'checked' doesn't
[fix] duration substracting can actually cause to panic, 'checked' doesn't
electricherd/audiobookfinder,electricherd/audiobookfinder,electricherd/audiobookfinder,electricherd/audiobookfinder,electricherd/audiobookfinder,electricherd/audiobookfinder,electricherd/audiobookfinder,electricherd/audiobookfinder