mkv & m2ts how to convert to 720P from 1920x1080p

[Plug]

is there a easy method or a as easy as possible method of converting just the video to 720p and keeping the audio without conversion

i see so meny releases in 720p format and i have no clue as to how they do the video conversion part

currently all my releases have been ripped out of my bluray and hddvd movies to the above containers with tsmuxer or eac3

i checked out the quality of ironman 720p and honestly i couldnt tell that much of a diffrence in picture quality on my 1920x1080p 37"HDTV

i just want to get more space as i have 15 movies on my pc that avarage between 26gig to 15gig

and the iron man 720p version was only 4.37gig :o

[Rusty257]

Where are you finding these different versions. i believe all movies for either HD DVD and BR are encoded in 1080p. So again where are these 720p movies your are referring to?

[Plug]

I see movies from release groups that reencode there 1080p versions to 720p versions i need to know how they do it....

25gig turned into 8-9gig with minimal quality loss sounds good to me.

[DrinkLyeAndDie]

This discussion is no doubt going to turn into a discussion of software and will involve third party software so I am moving it to the Third Party forum.

[Rusty257]

you mentioned Ironman. Do you have a link or someplace i can take a look at these 720p encoded movies? again i have never heard of any movie actually releasing in 720p.

[DrinkLyeAndDie]

you mentioned Ironman. Do you have a link or someplace i can take a look at these 720p encoded movies? again i have never heard of any movie actually releasing in 720p.

When Plug said 720p releases and conversions I can't help but assume they are discussing releases from movie pirating groups. Discussion about where to get such movies is not allowed.

[Rusty257]

my thoughts exactly. a quick search on yahoo returned ironman 720p from a torrent site..:disagree: no where else.

[BDMinus]

Badaboom is a h.264 encoder that uses CUDA enabled nvidia video cards (Geforce 8xxx or higher) to accelerate encoding. The current beta version allows some files in 1080p as input and the max output is 720p so theoretically someone could put in a 1080p m2ts and get a 720p mp4. since its a beta its unstable, but once theres a stable release i'd imagine some who want to save some HD space may consider converting their hd dvd/blu-ray collection into 720p mp4 with this program.

[pkh]

After copying movie to harddisk using AnydvdHD, use tsmuxer or evodemux to demux and get seperate video and audio files. Then use MediaCoder for video compression. It is easy to compress video to whatever resolution and size you want. Then use mkvmerge to mux everything (video, audio, subtitles, chapters....) into mkv.

If original audio is DD then you can just put it into mkvmerge. Otherwise use eac3to to convert audio(DD+, TrueHD...) to DD.

[phillytec]

But what do you do once you have the new mkv file what will that play on?

[g4sho]

VLC media player will play .mkv just fine.

[PES]

or on the Popcorn hour A1xx preferably streamed from a network disk. No fans, no spinning discs or other disturbing sounds.

I usually use RipBot or TMPGenc Express 4.0, where that later just recently supports CUDA. My question is if anyone has any experience with CUDA, does that improve the encoding speed significantly:confused:?

[jamesthebard]

VLC, Media Player Classic, XBMC/Plex...they all work with respect to Matroska. I've had a chance to play with Badaboom (nV) and AVIVO (ATi) and both work decently well (and very quickly with supported hardware). I prefer a bit more control over the encoder myself though.

As far as encoding software/toolchain, I'm a big fan of MeGUI, eac3to, BeSweet, SupRip, and mkvtoolnix to reduce a ~20GB 1080p rip down to 720p. Add in BDEdit and you've got chapter times.