1)   Free MPG to ASF SE 1.7.8
An excellent and free program. Converts MPG to ASF for you as you like. The converting speed is relatively fast. And the output quality is not bad at all. With the user-friendly interface, you can know how to use at the first sight.

 2)   Free MPG 2 ASF Lite 1.8.2
Free MPG 2 ASF Lite is a totally free conversion program which can convert your MPG to ASF format with fast speed and good quality. With a user-friendly interface, it is easy to use for both veterans and beginners.