Ace Video Converter is an unusually powerful video conversion tool with a lengthy list of features.
The program uses the popular FFmpeg to carry out the conversion process, for instance, so supports just about every video format. And is able to convert those files to most common video formats (3G2, 3GP, AVI, ASF, FLV, MPG, MP4, MKV, MOV, OGV, SWF, WEBM, WMV), as well as saving the soundtrack to an appropriate audio format (AIFF, AAC, AU, FLAC, M4A, MP2, MP3, OGG, RA, WMA, WAV).
Alternatively, the program is able to convert your video into a suitable format and resolution to run on more than 40 devices: the iPhone, iPad or iPod, various Android tablets and phones, the PSP, PS3, Sony Walkman, Xbox 360 and more.
Sometimes you may need to take more precise control of what's happening, of course. Click the "Show Advanced Settings" button and you're able to choose your preferred video and audio codecs, bitrates, frame rates, output size and more.
And, unusually, there's a YouTube Downloader built in to the program. Give the program a YouTube URL and it can both download the appropriate clip, and convert it to the precise format you need.
This isn't quite as polished as some of the competition, but the audio conversion, YouTube downloader and general configurability means Ace Video Converter will still be very useful to a lot of people. If you've not found a video converter you like yet, give it a try.
Please note, Ace Video Converter will by default try to install several browser addons, change your home and search pages, and so on. These can all be avoided, but only if you pay attention during the setup process, clear the relevant boxes, click "Decline" buttons and so on.