Why is iMovie HD taking up so much HD space?

Discussion in 'Digital Video' started by katlove, Jan 19, 2009.

  1. katlove macrumors newbie

    Joined:
    Dec 31, 2008
    #1
    So I'm taking some old home movie clips that I have stored on my iMac in .mp4 format and importing in iMovie HD (6) ... I notice my HD space vanishing quickly -- for example, a 24 min. clip was about 1.4GB in its original form but when I imported into iMovie the same clip was 11GB ... what's the deal?
     
  2. bigbossbmb macrumors 68000

    bigbossbmb

    Joined:
    Jul 1, 2004
    Location:
    Pasadena/Hollywood
    #2
    You can't edit MP4 natively, so iMovie transcodes the footage to AIC.
     
  3. katlove thread starter macrumors newbie

    Joined:
    Dec 31, 2008
    #3
    So should I go back and use my Canopus converter and transfer the footage directly into iMovie or is there away to convert these mp4 files?
     
  4. bigbossbmb macrumors 68000

    bigbossbmb

    Joined:
    Jul 1, 2004
    Location:
    Pasadena/Hollywood
    #4
    If you can recapture the footage, do so in the DV codec and then setup the project to be DV in iMovie... DV files are 13gb/hour, but iMovie will not need to transcode them to AIC during the edit.
     
  5. katlove thread starter macrumors newbie

    Joined:
    Dec 31, 2008

Share This Page