when i convert xxx.avi file to mpeg1 for VCD. I use TMPGEnc v2 to do that but everytime i open the VIDEO SOurce (xxx.avi) it's appear " the file can not open or not supported" why? it's happen like this? do i need any special plugin to convert this avi file? i don't know is a DIVX or a avi file coz i download from internet.