How do you play HD-movies?

VLC and Plex.

Vlc can do this job also!

wdtv live + 32" full hd plasma

K-Lite Mega Codec Pack and Real Alternative 2.02

K-Lite and MPC-HC is the only way to go.

VLC all the way!

Power DVD 14

vlc player all the way

I use Power DVD

VLC best player I've ever used, simple and powerful

VLC for almost all my movies/TvShows

I use A multimedia player called Mederer who read everything .... on my TV sreen

I run a Plex Server on a HP Micro server running Xpenology, which is then picked up by Plex on my phone, tablet, TV Raspberry Pi or Fire TV stick.

Plex. It has everything, for every platform.

BS player

the KMPlayer and for some special formats I use VLC Player.

Media player classic with klite codecs

Media Player Classic, had no problems playing anything using it

VLC and MKV player

VLC is the best

vlc media player

VLC. Which is almost disappointing sometimes, because it just plays whatever I tell it to play, and that means I don't have an excuse to to Full Nerd and research and set up some ultracomplicated system with remote-control apps, autodownloaders for movie covers and subtitles, etc. Nope. Just VLC.

VLC on my pc. I use Plex for everything else, laptop, phone, tablet and chromecast to watch it on my tv.

I use VLC, naturally.

VLC for almost all my movies

I use GOM Player to play movies. I usually download 720/1080p movies & then connect it with my Sony 60" LED, to enjoy it properly via HDMI! :P

PotPlayer on the PC or USB hard drive connected to 42" LCD TV

Why so many VLC's users here :c
Splash PRO EX tha best <3

VLC becaose no need external codecs and play everything with good quality, but most the time I use MPC-HC with codecs, x264, XviD, DivX, CoreAVC Pro, ac3filter, lame, MatroskaSplitter, ffdshow... I missed some but i need them for encoding (k-lite is fine just for watch with BSplayer crap...)
MediaInfo GUI is good for file information

for me i use a bsplayer haw a automatic codec pack download and subtitles download automatic
and later i use vlc player

codec is a k lite codec pack but vlc player haw all codec inside
gomplayer is great to but i prefer vlc player use a bsplayerl for automatic subtitle download

I use Potplayer to play HD videos as it can play almost any video file

QQ Play in China

Vlc+K-lite Mega Codec Pack+Splash Pro EX

VLC Media Player + K-lite Mega Codec Pack

Play Using GOM Player, with all necessary codecs via HDMI To 60" Sony LED :P to ensure maximum clarity

VLC all the way! got a dual screen monitor setup hooked up to a 42inch HDTV

I am using vlc for a long time.

Yup same here VLC 4 Life (on my desktop)
For my Media Center Raspberry Pi 2 I use Kodi (Embedded on OpenELEC)

Been using VLC for so many years that remembering the player I used before that is not possible.

Long life to awesome free software like this one.

Apple TV only!