I work in the music industry setting up releases for digital distribution. This is a pretty consistent conversation I have on a weekly basis.
Me: Hi! I need artwork in JPG format and at least 3000×3000 px for the thumbnail. There can’t be any copyrighted images on there. The audio needs to be a WAV file: 44.1khz and 24bit. Please send lyrics so I can check if the track is explicit (don’t include a marker on the artwork if it isn’t.)
Client sends me artwork with a BMW sticker, a Hennessy bottle and a Selfridge bag on it, front of stage. The resolution is 500×500 and the file format is .png. It has an explicit marker on it even though the track is not explicit. The audio is mp3, or mp3 converted to WAV.