Some videofiles are playing with violet and green colours! What can I do to fix it? I use Media Player Classic and latest version of k-lite codec pack. Thanks!

There are a lot of free Blu-ray players you can download.

1. Macgo Windows Blu-ray
Macgo Windows Blu-ray is a simple and easy to use Windows 10 DVD player, very basic in regard to setting options.

2. Leawo Blu-ray Player
A free Blu-ray and DVD player that can support a lot of formats and this is a region free player.

3. PowerDVD 16
PowerDVD 16, having both PC & TV UI modes, remains with its pleasing and slick style and has added TV streaming

I would recommend downloading and installing VLC Media Player.

From Wikipedia http://en.wikipedia.org/wiki/VLC_media_player>
"VLC is a portable multimedia player, encoder, and streamer supporting many audio and video codecs and file formats as well as DVDs, VCDs, and various streaming protocols."

It's an excellent player, and can play almost any video file you have.

To download go to http://www.videolan.org/vlc/ and follow the instructions there.