How to Convert WMV to MP4?

I have a bunch of HD WMV video files. I want to convert WMV to MP4 while not descending the quality of them to work on my iTunes iPod. Where can I find such a WMV to MP4 converter?
Answer: There are plenty of WMV to MP4 converters on Google while rare of them can convert HD WMV to MP4 by keeping the original quality --- except Aimersoft Media Converter, the best WMV to MP4 Converter that can convert both HD wma and SD wmv video files to MP4 with high quality, because it's adjustable output file settings enable you to convert WMV to MP4 with customizable video quality layers.
(Only $35.95) Guide: Convert WMV to MP4... How to convert WMV to MP4? Check this guide you'll find it is so easy to convert WMV to MP4:
Step 1: Add WMV Files
Free download DRM Media Converter and run it, then click "Add" button to load WMV files.
Step 2. Select "MP4" output format
You can set your output settings as follows:
Step 3. Start converting
Click "Start" button to begin to convert WMV to MP4, that's all.
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