Recs.
Updated
A media player from VideoLAN - a non-profit organization developing and promoting free, open-source multimedia solutions
SpecsUpdate
Pros
Pro Plays back almost everything
VLC reads almost all music and video without codec installation. It has a wide range of supported
encodings. From basic .avi to .mov, VLC is capable of playing BluRay, HD and most common video format types used on Mac – .mp4 & .mov.
Pro Surprisingly Lightest on Resources
Yes. Lightest. Even better than the ones known to be light. Both when playing music, only a single song or when playing a video. Either in terms of Ram and Cpu. Compared with almost all, including the ones from Windows like mpc-hc .. or light ones from Linux like Alsa Player, Audacious, SmPlayer .
Cons
Con Lacks libraries and advanced music player features
VLC is a media player first and foremost. There is no library management, aside from playlists, usage of tags is very limited, no rating system and VLC is best at playing a file directly from a folder as opposed to helping the user manage or find good songs in their music library.
Con Not so great for audio files
While VLC is doing a good job with video reproducing, it is fairly un-suitable for audio files.