: This typically refers to the specific episode or volume number within a series.
: This suffix denotes the technical quality (High Definition) and often implies that the file contains all segments or is compatible with all regional playback settings. The Evolution of Digital Media Archiving Muramura.tv-040111 407-HD-ALL
: This is a date-based or sequential serial number. In many Japanese naming formats, this represents April 1, 2011, indicating the original release or upload date. : This typically refers to the specific episode