: A standard-definition resolution. While many remasters are upscaled to 720p or 1080p, 480p versions are often distributed to maintain smaller file sizes while preserving the improved visual clarity of the remaster.
The cut-off “Multi A...” likely meant “Multi Audio” or “Multi Audio AAC/AC3”. One Piece S01E001 Remastered -480p x264 Multi A...
While 4K and 1080p are standard today, One Piece began in a 4:3 aspect ratio intended for Standard Definition (SD). : A standard-definition resolution
If you'd like to dive deeper into the series, I can help you with: A for the East Blue Saga. While 4K and 1080p are standard today, One
I’m Luffy! The Man Who Will Become the Pirate King! Source: Remastered
: A notable change is the conversion from the original 4:3 aspect ratio to 16:9 widescreen. This often involves "cropping" the top and bottom of the original frame to fit modern screens.