What version of Quicktime do you have installed?
Some people find that Iphone won't edit easily because it uses a variable frame rate
- A possible fix in message #22 http://forums.adobe.com/thread/934466
What version of Premiere Elements are you using and on what computer operating system is it running?
You do not need Premiere Pro details for your Premiere Elements issue.There is no lack of Premiere Elements threads here which have addressed successfully the video/variable frame rate and Premiere Elements potential problem.
Basically, video that is recorded with a variable rather than a constant frame rate can have problems in Premiere Elements (many versions). The problems can range from audio out of sync to not being able to import the video with its variable frame rate into Premiere Elements project.
When this is the case, you can take the video with the variable frame rate and convert it to a video with a constant frame rate which can be imported into Premiere Elements project. The free HandBrake program is easy and quick to use for this purpose.
1. Open HandBrake.
2. In the HandBrake workspace
Chapters (usually set to Seconds)
Destination: Browse to and set save location for the export
Output Settings: Mp4
Leave Picture Tab as is.
Under Video Tab
Video Codec: H.264 (x264)
Framerate: Set for mid range frame rate which is shown with the min and max value in a video properties readout program. Select a number as entry. Do not use something like Same As Source.
dot Constant option for the frame rate.
Hit the Start button at the top left of the workspace and wait for the export finish evidenced by "Queue Finished" which appears in the progress bar at the bottom left of the workspace.
3. Import this H.264.mp4 into Premiere Elements (Of course, be sure to have latest version of QuickTime installed on the computer with Premiere Elements and be sure to be running the programs from a User Account with Administrative Privileges. And, the rest of the drill about correct project preset, etc.)
Please view and consider. Any questions or need clarification, please do not hesitate to ask.