[doctorxxx]

hi, i have tested several videos before write this post.
things you need:
an xbox with last version of xbmc, you must disable all postprocessing options , filters off also and put a cache of 8 mb for network streaming.you can select pixel shader high quality

videoredo plus

canopus procoder 2

womble mpeg video wizard

ok, lets go to the encode, take the ts and generate a mpg using video redo , demux audio and video using womble mpeg.

open canopus prococer 2 and add the video, advanced setting add filters , use deinterlace if needed and croping also if 1920x1088 to remove 8 bottom pixels.
activate force film decode.

ok, in procoder target tab add, and in the profiles look for hd, then mpeg, now modify settings : 23,976 fps, vbr 2 passes 4500 bitrate, no interlaced , mastering quality.

tag convert an go....
wait 16 hours for a whole movie and then use womble to mux the video we have just get with the audio we demuxed at the beggining.

thats all in a resumed way, i hope it works for you

you can download video samples in usenet alt.binaries.hdtv.repost

madagascar_trailer_720p_xbox_compatible.mpg

discoverers_720p_xbox_compatible.mpg

[Diggedy]

interesting, i wasn't aware that 720p mpgs would run on xbox! how is the quality, it sounds like it would be a very low bitrate for that resolution (especially for mpeg-2)? i've been using xvid for 720p reencodes using the same as your mpg bitrate (around 4500kbps) which can still look very good.

here's my method if you would like to compare output quality:

1) demux video and audio using projectx

2) create a d2v from the mpeg using dgindex

3) create the following avisynth script:

# load plugins
loadplugin("c:\program files\avisynth 2.5\plugins\dgdecode.dll")
loadplugin("c:\program files\avisynth 2.5\plugins\decomb521.dll")

# source
mpeg2source("d:\filename.d2v")


# decimate
telecide(order=1)
decimate(cycle=5)

# resize
lanczosresize(1280,720)

4) open the .avs in virtualdubmod, add the audio track under stream list then save as avi with the following settings:

xvid mpeg-4 codec
profile: unrestricted
encoding type: single pass
target bitrate: 4525 (it can go higher but this is a pretty good rate for fitting a film on 1 dvd-r)
don't use adaptive quantization, quarter pixel or gmc and also don't use b frames as these increase decoding complexity.

i'm sure there are other optimisations that can increase quality and still play without framedrops but i am happy with the results using these settings so far. if anyone has anything to add that would improve quality i'd be happy to give it a go!