For the Surround Engineers database, the (evolving) convention is to use "BD-A" to designate a Blu-Ray disc with primarily or exclusively audio content (not counting title & menu screens, still images, etc.) and "BD-V" for concert videos and the like. I find that distinction more informative than awkward--let alone distasteful.
FWIW, here's how Bing AI parses it:
A Blu-ray video disc primarily focuses on high-definition video quality, while a Blu-ray audio disc is dedicated to delivering high-resolution audio, essentially providing a much higher quality sound experience compared to standard audio formats found on a video Blu-ray disc; both formats utilize the same Blu-ray disc technology but prioritize different aspects of media playback - video on one and audio on the other.
Key points about the difference:
Primary focus:
Blu-ray video is primarily for watching movies with high-quality visuals, while Blu-ray audio is solely for listening to music with superior sound quality.
Audio quality:
While a Blu-ray video disc may include high-quality audio options, a dedicated Blu-ray audio disc offers significantly better audio fidelity with support for lossless audio formats like Dolby TrueHD and DTS-HD Master Audio.
Disc content:
A Blu-ray video disc contains both video and audio streams, whereas a Blu-ray audio disc only contains audio data.
