When you open a PowerPoint 98 Macintosh Edition presentation that contains
movie objects in PowerPoint 2000 for Windows, the movie objects will be
missing. For example, you will see the following caption rather than the
bitmap poster frame image:
QuickTime(tm) and a <Video> decompressor are needed to see this picture.
If you double-click this caption, you receive the following message:
The linked multimedia file is unavailable. Do you want to locate it
When you locate the original movie file, the movie may play; however, the bitmap poster frame will still contain the warning caption.
This error is caused by fundamental differences in the two Operating System platforms. When you insert a movie file into your Macintosh PowerPoint presentation, the location of the movie file is represented by something similar to:
The same movie file location within Microsoft PowerPoint for Windows would be similar to:
In addition, the Macintosh and Microsoft Windows use two completely different methods for playing movie files. PowerPoint 98 communicates directly with the Quicktime extension on the Macintosh, a low-level system extension. When this information is translated for Microsoft Windows, PowerPoint 2000 attempts to communicate with a low-level extension, and is unable to do so.
To work around this behavior, follow these steps:
- Copy the original movie files to the computer where PowerPoint is installed.
- Open the presentation in PowerPoint, and delete all movie objects.
- Re-insert each movie object. You can insert movie objects in any of the following formats:
- Audio Video Interleave(AVI).
All inserted movies will be linked to your presentation. If you show your
presentation on a different computer, remember to also copy the movie file
when you copy the presentation. If you do not, you will just have a picture
of the poster frame of the movie.
Microsoft has confirmed this to be a problem in the Microsoft products
listed at the beginning of this article.
For additional information, please see the following article in the
Microsoft Knowledge Base:
PPT98: Cannot Play Movies from PowerPoint 97 Files