diff --git a/audio_splitter/constants.py b/audio_splitter/constants.py
index 07c8d32..53b7a96 100644
--- a/audio_splitter/constants.py
+++ b/audio_splitter/constants.py
@@ -54,7 +54,7 @@ CODEC_INFO = [
     {'name': 'mp3', 'ffmpeg': 'libmp3lame', 'recommended_container': 'mp3', 'recommended_extension': '.mp3', 'codec_type': 'audio'},
     {'name': 'alac', 'ffmpeg': 'alac', 'recommended_container': 'mp4', 'recommended_extension': '.m4a', 'codec_type': 'audio'},
     {'name': 'pcm_s16le', 'ffmpeg': 'pcm_s16le', 'recommended_container': 'wav', 'recommended_extension': '.wav', 'codec_type': 'audio'},
-    # Video codecs
+    # Video codecs (including cover images)
     {'name': 'theora', 'ffmpeg': 'libtheora', 'recommended_container': 'ogg', 'recommended_extension': '.ogv', 'codec_type': 'video'},
     {'name': 'vp8', 'ffmpeg': 'libvpx', 'recommended_container': 'webm', 'recommended_extension': '.webm', 'codec_type': 'video'},
     {'name': 'vp9', 'ffmpeg': 'libvpx-vp9', 'recommended_container': 'webm', 'recommended_extension': '.webm', 'codec_type': 'video'},
@@ -86,13 +86,13 @@ CODEC_NAME_TO_FFMPEG = {codec['name']: codec['ffmpeg'] for codec in CODEC_INFO}
 #            Use None to indicate that any video codec is supported.
 #            Empty list means no video support (audio-only container).
 COMPATIBILITY_MATRIX = {
-    'mp3': {'audio': ['mp3'], 'video': ['png']},
+    'mp3': {'audio': ['mp3'], 'video': ['png', 'mjpeg']},
     'm4a': {'audio': ['aac', 'alac', 'opus', 'flac'], 'video': []},
     'mp4': {'audio': ['aac', 'alac', 'opus', 'flac', 'mp3'], 'video': ['h264', 'h265', 'vp9', 'av1']},
     'mkv': {'audio': None, 'video': None},
-    'ogg': {'audio': ['opus', 'vorbis', 'flac'], 'video': ['theora', 'vp8', 'png']},
+    'ogg': {'audio': ['opus', 'vorbis', 'flac'], 'video': ['theora', 'vp8', 'png', 'mjpeg']},
     'webm': {'audio': ['opus', 'vorbis'], 'video': ['vp8', 'vp9', 'av1']},
-    'flac': {'audio': ['flac'], 'video': []},
+    'flac': {'audio': ['flac'], 'video': ['png', 'mjpeg']},
     'wav': {'audio': ['pcm_s16le'], 'video': []},
     'aac': {'audio': ['aac'], 'video': []},
 }