High Definition Question.

Discussion in 'Digital Video' started by Mitch1984, Apr 14, 2006.

  1. Mitch1984 macrumors 6502

    Mitch1984

    Joined:
    May 16, 2005
    Location:
    Telford
    #1
    I have an iMac 17" (Core Duo). I was wondering which HD congiguration I would pick when watching movie trailers?

    480p
    720p
    1080p
     
  2. pdpfilms macrumors 68020

    pdpfilms

    Joined:
    Jun 29, 2004
    Location:
    Vermontana
    #2
    You can probably watch any of them. Just try em all, the worst that will happen is the video is skippy and it clogs up your download speeds for a short while.
     
  3. balamw Moderator

    balamw

    Staff Member

    Joined:
    Aug 16, 2005
    Location:
    New England
    #3
    :p

    FWIW 720p 1280x720 is the closest to the 1440x900 native resolution of the 17".

    I tend just to use Front Row...

    B
     
  4. ChrisFromCanada macrumors 65816

    ChrisFromCanada

    Joined:
    May 3, 2004
    Location:
    Hamilton, Ontario (CANADA)
    #4
    Either 720p or 1080p. Your resolution is in between those. If I were you I would probably go with 1080p if you have a fast enough internet connection.
     
  5. BlizzardBomb macrumors 68030

    BlizzardBomb

    Joined:
    Jun 15, 2005
    Location:
    England
    #5
    I would recommend 720p, you wouldn't notice much difference as the enlargement would be minor if full-screened.
     
  6. Uma888 macrumors 6502

    Joined:
    Jan 10, 2005
    Location:
    Birmingham, United Kingdom
    #6
    NO.

    It also depends on CPU and RAM

    the iMac i had chugged when i played HD trailers (1080p) 19fps compared to the original 30fps its supposed to play)

    720p on the other hand works fine, but doesnt look as good
     
  7. smokeyboi macrumors member

    Joined:
    Feb 6, 2006
    #7
    uhm...the imac you had was probably a G5 right? if so, no wonder it got bogged down while playing 1080p!

    mitch has an intel core duo that should play 1080p very smoothly...that along with the ati x1600 which helps decode HD videos.
     
  8. BlizzardBomb macrumors 68030

    BlizzardBomb

    Joined:
    Jun 15, 2005
    Location:
    England
    #8
    Apple say it recommends a 2.0 GHz Intel Core Duo or faster, so maybe the 1.83GHz cannot keep up a steady 30fps. Although such a large framerate loss sounds a bit odd.
     
  9. LethalWolfe macrumors G3

    LethalWolfe

    Joined:
    Jan 11, 2002
    Location:
    Los Angeles
    #9
    FWIW I believe all of the HD trailers on Apple's site are 24fps. So your iMac isn't sucking wind quite as bad as you thought it was. ;)


    Lethal
     
  10. Cabbit macrumors 68020

    Cabbit

    Joined:
    Jan 30, 2006
    Location:
    Scotland
    #10
    Apple HD's are showing up for me at 23.95 FPS achual on 480p, 720p, and 1080p
     
  11. balamw Moderator

    balamw

    Staff Member

    Joined:
    Aug 16, 2005
    Location:
    New England
    #11
    Isn't 24 fps standard for film? 25 fps for video in the PAL world and 30 fps for NTSC video (in both cases due to being half the frequency of the AC mains power)?

    B
     
  12. LethalWolfe macrumors G3

    LethalWolfe

    Joined:
    Jan 11, 2002
    Location:
    Los Angeles
    #12
    Yes.

    But HD is a new beast w/a new set of rules.


    Lethal
     

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