SmY is the tag of the release group — a self-organized team of pirates who captured, encoded, and distributed the file.
The - before the group name is a standard scene separator.
This filename format is typical of pirated releases. Unless you own a legally purchased digital copy and this is a personal backup (unlikely given the scene tag), downloading or sharing this file likely infringes copyright.
Verification steps
Tools (commands)
To play this .mkv file, it is recommended to use media players that support a wide range of codecs:
If you experience stuttering on older hardware, the x264 codec is efficient, but 720p still requires moderate processing power. Despicable Me 2 2013.720p.HDRip.x264.AC3-SmY.mkv
Here’s a useful write-up regarding the file you named. This is structured to help you understand what the file is, its technical specifications, potential quality, and how to handle it.
(These are typical expectations for a 720p HDRip x264 AC3 release; exact values vary by release.)
Video
Audio
Container & Subtitles
File size
The filename "Despicable Me 2 2013.720p.HDRip.x264.AC3-SmY.mkv" indicates the following technical details:
Note: This monograph focuses on the media release package named above (a 720p HDRip x264 AC3 encode, scene tag SmY). It covers film context, technical file/container details, typical source and quality expectations, verification steps, playback and compatibility, common issues and fixes, metadata and legal/ethical considerations, and actionable steps for handling the file safely and effectively.