I’m no expert, but I wouldn’t say “all” players do not support .wmv but going from camera format to .wmv then to .mpg each step loses quality.
Best to know if you are using Standard Def .avi or High Def .m2t, m2ts, m2v .
1. Make sure you are starting your project (file/properties) using the camera’s settings noted in your File Manager list.
2. Do as previously noted using Architect mpeg2 main concept version
3. I like to make sure my advanced settings (custom button/video tab override during RENDER AS…) compression is 8K max, average 6K, low 192 (play around some DVD players are sensitive).
4. I also override Aspect Ratio to 16:9 Display unless you have old 4:3 TV or SD 4:3 format camera. Otherwise, you may find your TV / DVD compensating the format causing lower resolution.