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How To Convert AVI to ASF
This following application listed in this page should offers the easiest way of converting AVI files to ASF for you with re-encoding technology to preserve the original quality as possible as it can. AVI is a video format which means Audio Video Interleaved.
About AVI to ASF Converter 
Advanced X Video Converter – the most complete MPEG, WMV, ASF and AVI converter that can transform videos between all popular formats – 3g2, 3gp, asf, wmv, avi, dvd, divx, mp4, xvid, vob, mpeg, mpeg4, m4v, mov, qt, rm, etc. Accoring to your needs, Join or split any video into pieces or larger one file. just download the wonderful powerful program and enjoy the high conversion speed on the market now!
Here is the way of how to convert AVI to ASF?
The first thing you need to do (recommended): Reboot your computer before your conversion, Do not under estimate this step, I find it essential to guarantee a 100% perfect encode.
Then follwing the 3 steps below:
1.Add source video files.
2.Set the output profile.
3.Click the “Start” button.
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Note:
The above downloads are the downloaders from Regnow of Digital River Inc (Nasdaq: DRIV). When it is running, the firewall on your computer may popup the request for Internet access. They have been tested and are 100% CLEAN.