Kmplayer Portable 'link' -

The portable version includes support for post-processing. This means it can clean up low-quality video files, smoothing out pixelation and sharpening edges in real-time. It also supports:

The standout feature of KMPlayer has always been its internal codec logic. It filters through messy codec packs (like K-Lite) and uses its own internal decoders. This ensures that if you download a strange file format—say, an obscure .ogm file or a high-bitrate .mkv—it will play smoothly without crashing your system. kmplayer portable