You may try this AVS Video Editor which has many great functions. The features in the official site are below:
1. Direct Transfer to iPod, PSP, Mobiles and Other Portable Players
2. Supports Virtually ALL Video Formats
3. Burn Movie DVDs
4. Capture and Edit Video from External Devices
5. Edit Video and Enhance Your Movies
6. Create Slide Shows
7. Make Perfect Audio for Your Video Editing Tasks
8. Scene Detection
9. Convenient Video Editing Tools and Interface
There is the free download link:
http://www.avs4you.com/AVS-Video-Editor....
Also, you can use Photoshop which may be difficult for us:
http://www.adobe.com
Yes you can but first you need to copy the video to your computer's hard drive. Your Blackberry should of came with instructions on how to do this.
Once you have the video on your hard drive you need to import it into WMM (Windows Movie Maker). If a progress bar comes up then good, that means it's importing.
If it says something like unable to import because this file type isn't supported by WMM then you'll need to do one of two things.
1. Trick the program into thinking the video is a supported file type.
2. Convert the video to a supported file type using a video converter.

DVD to MP4 Converter is excellent DVD ripper software, which can convert DVD to Zune/iPod/PSP/MP4,MP4 AVC Video.

Are you sure you can convert dvd to mp4 video with this program?

To trick the program you simply rename the file extension to an extension that's supported by WMM (best option is .avi). So for example if you had a video called hello.flv you would rename it to hello.avi. After doing this try importing it, if it still isn't working then try this. Open WMM and click tools>>>options and on the compatibilaty tab make sure all your codecs are ticked. Then try importing the video again. To show file extensions (.wmv .avi etc)
If it still isn't importing then you shoud convert the video to a format supported by WMM (.wmv or .avi etc). There are loads of video converters around so you should be able to find one you like. The one I use is Total Video Converter. You can get that here.
http://www.effectmatrix.com/total-vide...
That isn't a free program but you can use a full free version of it for 10 days. If you prefer a totally free video converter you can try one of the ones below (they aren't that good though, they will probably mess up the quality of your videos).
Any Video Converter
http://www.any-video-converter.com/pro...
Free Video Converter
http://www.extensoft.com/?p=free_video...
Hope this helps.