文件?是软件吗?
avi->rmvb:brp, hpp, erp, rpp……都可以
rmvb->avi:vdm(avs开启real档), eo video
avi->mpeg:tmpgenc, eo video
mpeg->avi:vdm, eo video
rmvb->mpeg:tmpgenc(要装real alternative), eo video
mpeg->rmvb:brp, hpp, erp, rpp……都可以
剪切的话,avi和mpeg可以用vdm,rmvb用real media editor