Well...I was able to successfully turn the mkv video into an avi. However, the subtitle I get is the softsub one and now I wanna hardsub it with my avi video and how can I do that? I have read through all the threads that are related to my questions. Some are similar but without any solutions. Even they are similar, but there are slight different in here or there so I make a post asking for help. This is what I have got and done: - I have installed the K-lite codec pack in FULL VERSION, that means I have all the codes I need for the job to be done. - A lot of people suggest using virtualdubmod to do the job, but I don't even know how to start, and when I went to check the compression, I didn't see the list of x264 or h264 there. But the K-Lite Pack I installed already have the ffshow installed which contains the x264 codes there. So no luck with virtualdubmod. And besides, I don't even know how long it is going to take to reencode the whole video with the subs. My PC is only athlon 64 3000, which is a bit slower than any other PC out there nowadays. - When I tried to do the job, the output size of the file is 100 times bigger than the that of the original file. My video is an anime video which is 160MB, but the output size is 10GB with the use of virtualdubmod. WHY? I hope you guys could help and shed light on this. I really appreciate it.