Like i said 2 years ago (top post)... :
The entries are dupe.
"NW10107630" is the catalog number of the Game "YS 7 + Drama CD Edition".
"CADC-0011" is the catalog of the Drama CD (both the separate commercial release by chara-ani, and the one to be found with the game).
Publisher/Distributer is chara-ani if i am correct.
We should merge both entries and modify the notes.
Either make it a commercial release with the mention that it was available with the YS 7 + Drama CD Edition game.
Or make it an enclosure entry with the mention it was also sold separately.
edit:
similar case with that entry..
This album is available with a special edition of the game & it was also sold separately. But both release use the same package/cat number.