High Efficiency Video Coding (HEVC), also known as H.265 and MPEG-H Part 2, is a video compression standard, one of several potential successors to the widely used AVC (H.264 or MPEG-4 Part 10). 

In comparison to AVC, HEVC offers about double the data compression ratio at the same level of video quality, or substantially improved video quality at the same bit rate.

Currently, more and more sources start to offer videos encoded using this standard and some products also have that codec available on the output.

H.265 codec was first introduced in Video Converter 17 and in the conversion module of Video Suite 16. 

There were several limitations on its support ( read-only, Windows 10 -only, one needed a high-end graphic card, such as NVIDIA GeForce GTX 950 or higher or Intel HD Graphics 5300 and higher). 

Movavi Video Converter Premium 18 for Windows OS and Movavi Video Converter Premium for Mac OS, as well as  Movavi Video Editor 14 Plus for Windows OS and Movavi Video Editor 5 Plus for Mac OS, and Movavi Video Suite 17 support H.265 both for the input and output. 

The codec is supported with MP4, unprotected M4V, MKV and MTS containers. 

Please find more information on the supported formats page.