We're adding a new feature in MC 27.0.68 or above. It allows you to re-rip a CD. If you've already ripped it, MC will tell you that it's been done before, then, if the original is lower quality, it will ask if you'd like to use the metadata (cover art and tags) from the previous rip, and (optionally) to remove the original.
This is for people who initially ripped to a lossy format like MP3, but later decided to rip to a lossless format like FLAC.
It also serves to warn you if you're ripping a CD for the second time.
The first part (checking for a previous rip) is working already in 27.0.58. The second part (copying metadata from the previous rip) is coming soon.