Do you want to convert one of your audio and video files to a format that will run on the BlackBerry Pearl or 8800?
The BlackBerry Technical Knowledge Center has posted a document to help you through the process.
First, you will want to browse through a list of supported and unsupported video and audio formats. Then after reading the section that will help you determine if an audio or video file needs to be transcoded- then you will transcode the file.
OK, so first let's read a list of Supported Audio Formats:
Note: Windows Media Audio and WMAPro are supported in BlackBerry Device Software 4.2.1 only.
But there are those Audio formats that are not supported:
Now to Supported Video file formats:
Note: Windows Media Video is supported in BlackBerry Device Software 4.2.1 only.
And for the bad news: i.e. Unsupported Video:
Are you good to go?
The section on Transcoding is clear but lengthy. Here's the link.