Often cited as one of the best alternatives to VLC, PotPlayer is highly customizable and lightweight. How to Play FLV file on Windows ?
To play .flv files (Flash Video), you'll need a third-party media player since the default Windows Media Player typically does not support this format without extra codecs. skachat proigryvatel dlia flv failov
Support for 8K resolution, multi-track audio, and subtitle synchronization. Often cited as one of the best alternatives