K-Lite Codec Pack is a collection of codecs and filters. The codec is required to encode and decode audio and video, so this program will allow you to see the vast majority of existing formats for movies, as it is characterized by being always updated.
It supports the following formats: 3GP, AAC, AC3, APE, AVI, DivX, 3ivx, DAT, Nero Digital, DTS, FLAC, HD-MOV, MPEG-1/2, M4A, MP3, MP4 , MO3, OFR, TTA, S3M, VOB, XviD and WV among others.
K-Lite Codec Pack is easy to use, install and configure. An important feature is that it helps uninstall those codecs present on the system that are not useful and need to be replaced.
K-Lite Codec Pack Full 13.0.0 is the latest version of this software, updated in March 2017. This new version updates Media Player Classic Home Cinema to version 188.8.131.52, ffdshow to version 1.3.4534, x264 VFW to Revision 2453, Codec Tweak Tool to version 6.1.1, Xvid to version 1.3.3 and adds support for decoding HEVC / H.265.
This program is free.