Video experts...tell me something
 

Just bought 50 of mpg videos, between 150 and 250 Mb each.
I would like to save the space on the server by converting those to wmv or whatever, but I want to keep "almost" the same quality of the movies.

Now In ASV Video Converter I have tons of options, which format/settings shod I use to convert videos to minimize their size and lose as little as possible in quality?