Only a front end gui for ffmpeg but i found this little utility quite useful since it can handle many multimedia format and the output results were quite good and also fast enought compare to handbrake or winff. It also has a utube downloader for easy access without need to open a browser.
Here is the lookie :
For you that download many flv video and wants to add them to their iPhone or iPod video library should smile with this pre-configured template since it very easy by selecting the Conversion to drop down list. I always use high quality and the output was reasonably good enough to play on iPhone / iPod resolution.
As you may see it much much more humanly rather than typing this eachtime converting mkv to mp4 :
mencoder -ni -vf harddup -vf-add smartblur=.6:-.5:0,unsharp=l5x5:.8:c5x5:.4 -xvidencopts bitrate=1200:profile=dxnhtntsc -lameopts cbr:br=128:aq=0:vol=1 -oac mp3lame -ovc xvid infile.mkv -o outfile.mp4
Here is the source I compile and added for KLIXs-2010 repository : http://ffmpeg.org/
Happy converting.