Does anyone know how to choose software to convert Video files?

I think you are wrong, if you want to burn any video files to DVD(such as burn flv files to DVD), and watch them on TV using DVD player, you should use the right software to create/burn standard video DVD from your video files, because the standard dvd player only recognize the standard video DVD, can't recognize the data DVD(directly put video files on disc, such as wma, or mpeg on disc), so you can't use "Handbrake" or other vieo converter software, there is an easy way can help you, you can try RZ DVD Creator, it can create/burn standard video DVD from any video files(all formats, include flv files, etc), it can directly convert any videos to standard video DVD and burn to any DVD disc(DVD+R, DVD-R, DVD-RW, DVD+RW, DVD-R DL, DVD+R DL, etc), such as flv to DVD, etc. You can yahoo or google search RZ DVD Creator and download it, work well, good quality, easy to use, hope it can help you.