Hey guys,

I'm working on a video for a local campaign. Simple cross dissolves are distorting after the video has been exported. Right before each cross dissolve in the timeline, I get the dropped frame warning notice. I've tried adding compression markers.

I'm running an iMac at my local library. I don't know the specs. The footage was uploaded onto macbook pro, converted, saved onto an external hard drive powered by a USB cord and then imported into FCP7 on the iMac. Even with the skipped frames, the video seems to work fine when playing from the timeline.

Any help would be appreciated.