07-06-2011 12:46 PM
Unfortunately I can't make any specific recommendations as to third-party software, however if you search the Community for 'video converter', you should be able to find a handful of forum discussions regarding this and some recommendations from community developers.
That being said, the latest versions of Desktop Manager do include a media management section where you can import videos from your PC to your device; there is also an option to convert the videos to a supported format for your device.
Finally, the following document is roughly a year old but provides some good information:
BlackBerry Development Advisor
07-07-2011 12:11 AM
thanks for your reply, finally l found some video converter can provide video formats on BlackBerry and l can play video streaming on my application so smoothly and nothing problem at all