Possible Issue In OGG Recording?

[homerlex]

To Duplicate:

• Use https://kbumsik.io/opus-media-recorder/ to record and download a .ogg file
• Run the .ogg file through ffmpeg to convert to .caf:
  ffmpeg -loglevel error -y -i test.ogg -c:a copy test.caf

Notice the output from ffmpeg:
Packet processing failed: Invalid data found when processing input test.ogg: Invalid data found when processing input

The .caf file is created properly but there must be something about the .ogg that ffmpeg doesn't like. I tried converting .ogg files from other sources and ffmpeg did not report any problem.