InsideHW.com has reviewed video converters: Badaboom and ATi Avivo

Encoding of video material is one of those tasks that demand a lot of processing power and till now we had to use, in most cases, CPU processing power. Since market of portable devices that can play video files (like smartphones and portable media players) is growing rapidly, necessity for conversion of video files to lower resolutions and bit rates is growing accordingly. Of course there are cases when we need to covert video file to higher resolution as in case of converting DVD to HD video format that is better suited for your new Full HD TV. Users are using Video Converters more and more every day and at the same time they are seeking for software solution that will do the job faster and with better results.

ATi vs. nVIDIA: Video Transcoding