Numbers game

[Pfdjr1]

16:9 widescreen aspect ratio with 3:2 pulldown
What exactly does these numbers mean? 16:9, and what exactly is 3:2 pulldown

[Blu Man]

http://en.wikipedia.org/wiki/Aspect_ratio_(image)

This should answer your questions. They are aspect ratios.

[4K2K]

3:2 pulldown is what happens when 24fps video is converted to 60fps video (and/or 60i video - actually I think it really/usually refers to converting 24frames/sec video to 60 fields/sec video)

See here for a proper explanation: http://en.wikipedia.org/wiki/3:2_pulldown#3:2_pulldown
- see the bit where they say 2:3 pulldown (sometimes referred to as 3:2 pulldown)

Basically films on Blu-ray are usually encoded at 24fps (actually they're usually slowed down to 23.976fps). If your player is not capable of outputting at 24fps (most are capable) or if your TV isn't capable of accepting video at 24fps and displaying it at a multiple of 24fps you will get "3:2 pulldown judder" when watching most Blu-ray films.

60hz LCD TVs aren't capable of both accepting and displaying a 24fps source (they might accept it but will convert it to 60hz). since 60/24=2.5 (not a whole number) - you'll usually get 3:2 pulldown judder on these sets with Blu-ray films.

120hz LCD TVs are often capable of both accepting a 24fps source and displaying it at a multiple of 24 (120/24=5, which is a whole number, so no 3:2 pulldown judder).