I think both work since opus is the codec but ogg is the container, but personally I’d probably go with .opus because it’s more descriptive.
Btw Apple’s ALAC and AAC files are typically stored in an mp4 container but with the m4a extension to mark it as intended to be audio only (although it may have a video track, which usually is used for album art).
I think both work since opus is the codec but ogg is the container, but personally I’d probably go with .opus because it’s more descriptive.
Btw Apple’s ALAC and AAC files are typically stored in an mp4 container but with the m4a extension to mark it as intended to be audio only (although it may have a video track, which usually is used for album art).