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oldmovieguy Level 1 Level 1 (25 points)
When in editing mode I am getting occasional freezing and jerky playback but the sound track continues to run. The same in full playback
The machine is a new 24" 3.06 so I doubt it is a lack of resource problem. Any advice would be appreciated.

iMac 24" 3.06, Mac OS X (10.5.6)
  • JBK Level 1 Level 1 (80 points)
    I have the same machine & when it happens to me, I simply shut down Imovie and reopen, then it behaves for a while.

    I'm using clips from my little Kodak Zi6, if that matters.....
  • oldmovieguy Level 1 Level 1 (25 points)
    I used a Sanyo xacti for recording which although not great is good enough. I've read other posts on imovie 09 support which seem to suggest that 09 is only good for short movies, say 15 minutes max, maybe thinking of getting final cut lite.
  • oldmovieguy Level 1 Level 1 (25 points)
    I contacted Apple support and desrcibed the problem. They suggested starting in 'safe' mode by holding down the shift key while starting, logging in and when screen fires up, log out, switch of and start normally, according to them this may cure the problem. I'll try it tonight.
  • JBK Level 1 Level 1 (80 points)
    Thanks oldmovieguy!
    Keep us posted. My movie got so bad last night, I couldn't even "preview" the project as I was going. It only worked if I manually skimmed the scrub bar across the project in the Edit window. I exported to QuickTime & was able to watch it smoothly in QuickTime at least.

    I hope your solution works! Let me know!
  • oldmovieguy Level 1 Level 1 (25 points)
    I'll keep you posted Joan, thanks for the input. Incidentaly, I was going to make this a general post but I'll run it past you first if I may. When skimming a frame or frames, the whole scene appears in the main window but when I've edited it, either some of the top or the lower half is 'clipped', any thoughts?
  • JBK Level 1 Level 1 (80 points)
    Gosh, I'm no expert...just plugging along....

    hopefully, someone will jump in to your rescue. If you had said that top & bottom were BOTH clipped, I would have suspected "letterboxing." Keep us posted, if you figure it out! I'll try the solution you mentioned, and see if it helps.
  • JBK Level 1 Level 1 (80 points)
    I noticed that you live in you use PAL over there?
    If so...I came across this thread that might be of interest.
    It has to do with the frame rate on the project.
  • oldmovieguy Level 1 Level 1 (25 points)
    We could be on to something here, many thanks for the heads up.
  • JBK Level 1 Level 1 (80 points)
    Well...sadly not for me.
    I'm recreating my Movie Project, to see where the problem begins.
    *I isolated it* begins to stutter on playback, as SOON as I add a transition. In my case, the cross dissolve. Then it stutters on playback. (I added the transition manually, and not the automatic way.)

    Wonder what this means!
  • oldmovieguy Level 1 Level 1 (25 points)
    I used transitions for the first time in the movie I am working on now and guess what, the cross dissolve, it does not stutter early on only after 4 minutes, there has to be a connection.
  • JBK Level 1 Level 1 (80 points)
    Hmmmm...maybe we're on to something!
    I did begin another thread, to draw attention to this specific problem we've isolated. Hopefully, between the two of us, we'll figure this thing out! It is VERY annoying. Especially, since creating a movie in the new Imovie 09 is a snap. Luckily, I had marked all my good footage with a star, so I can recreate a project in a jiffy!

    Message was edited by: JBK
  • bcr88 Level 2 Level 2 (240 points)
    The same thing happens to me with most transitions, regardless of the length or type of the transition. My guess is that this is a bug with iMovie since people with different computers and footage seem to be affected the same.
  • tjworld Level 1 Level 1 (10 points)
    ive been posting on another thread about this too - same problem. The fps rate 30 Vs 25 is interesting but surely apple software would deal with this? I'm not sure I understand how this works...

    I think this problem must be affecting many users. Must be a bug? Smooth playback in project is a fundamental requirement. It must be resolved.

    appreciate any help.
  • helimancdn Level 1 Level 1 (0 points)
    so, the fix for me was in another thread. Adding it here:

    Put the clip in a project, click on "clip Adjustments" from the drop down "gear" on the clip.

    Click on "Convert entire clip"

    Once done, that clip will work without stuttering. Something to do with changing the Codec. I did not notice a change in quality of the clip although some people have.
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