Mdon-026.mp4 — Must See

: The code follows the standard "Product Code" format used by Japanese distributors.

: A written record or fan-made translation of the dialogue. MDON-026.mp4

: "MDON" is the label prefix for the studio M's Video Group (Madonna) . : The code follows the standard "Product Code"

: The physical "paper" sleeve or jacket found in the DVD case. MDON-026.mp4

Since you mentioned "paper," you might be referring to one of the following:

: These products are generally sold through authorized Japanese retailers like DMM or FANZA .