: The physical "paper" sleeve or jacket found in the DVD case.
Since you mentioned "paper," you might be referring to one of the following: MDON-026.mp4
: Downloading or streaming from unofficial sources may violate copyright laws. : The physical "paper" sleeve or jacket found
The code typically refers to a specific entry in a Japanese adult media database rather than a traditional academic paper or a standard document. MDON-026.mp4
: "MDON" is the label prefix for the studio M's Video Group (Madonna) .