AVS Video Converter can give you a hand with this. This efficient, easy-to-use tool converts videos between the most popular formats (AVI, MP4, MPEG, WMV, FLV, MOV, 3GP and more) in just a couple of steps. Each format in AVS Video Converter has its own conversion options, which allow you to tweak certain settings such as video codec, 8frame size, and audio quality.

Conversions apart, AVS Video Converter still keeps an ace up its sleeve. The program also includes a special editing tool – hidden under the 'Edit' button on the toolbar – with which you can add special effects to the image stream and the audio track in your video file. The AVS Video Converter editor is very easy to use: simply drag and drop the selected files on the timeline and check the results in the preview window.

The video effects supported by AVS Video Converter include sepia, old movie, mosaic, puzzle, snow, pencil sketch, mirror, wave, greyscale and a lot more. As for sound, you can use amplify, chorus, reverb, vibrato and flanger, among others.

AVS Video Converter is a fully featured tool that not only converts video, but also lets you apply a variety of effects to both image and sound.