So you're only trying to play your anime on a game console because your PC is too slow to handle the HD playback? That is kind of an iffy plan because any PC that can't even play the video will take forever to re-encode it. If I were in that situation the first thing I would do is see if I could increase the clockspeed of your cpu. Whether this is even possible depends on what hardware you have and what settings are available in your bios. On second thought, if your PC is from 2005 you probably either have a Pentium 4 or if you're lucky, a socket 939 AMD. Even with overclocking, most of these probably can't play HD mkv's but I'm not really sure because I haven't tried this. If you're really desperate you could look around for an old processor that was top of the line when released but cheap now and is compatible with your motherboard. Sorry if I got a little off topic but if you just don't have enough processing power different software and codecs can only help so much. It sounds like the most powerful thing you own is a PS3, its just a shame that it doesn't fully support mkv. [edit] This only applies if your files can't be remuxed to something that a PS3 can play. If so, that might be your best option.