Thanks for this response
Bengt Wärleby wrote:
Think I've seen this too - several Years ago.
General approach when in trouble is as follows.*
• Free space on internal (start-up) hard disk if it is less than 10Gb should rather have 25Gb
I have 829 GB specifically to address this limitation.
Delete iMovie pref file
and is named. *com.apple.iMovie.plist *
While iMovie is NOT RUNNING - move this file out to desk-top.
Now restart iMovie.
Did this to no positive effect. same problem persists
Hard disk is untidy. Repair Permissions, Repair Hard disk (Apple Disc Util tool)
Did this. Still no fix.
• Garageband-fix. Start it, Play a note and Close it. Re-try (Corrects an audio problem that hinders iMovie)
Never use Garageband. so bypassed this for now.
Screen must be set to Million-colors
Check
Third party plug-ins that doesn't work OK (not relevant for iMovie’08 or 09)
That would be unfortunate and somewhat difficult to locate, I think.
iMovie updated ?
I didn't know there was a 6.0.4. Looking for a download now.
QuickTime updated ?
Have QT 7.6.4 installed
Mac OS version ?
10.4.11
All that being said and done, I think I determined the problem.
i.e. IMAGE SIZE.
Typically, I downsize & export images from iPhoto to a separate file and drag them from that file to the Clips or Timeline. Recently, being lazy I was trying to import directly from iPhoto via iMovie's Media/Photo area.
I think iMovie just doesn't like large files, because when I followed my previous procedure, it seems to work without the corruption.
Experience of others would be interesting.
thanks again for your help