Blu-ray and HD-DVD stream specs

[nonoitall]

Really sorry if a question like this has been asked before, but my searches haven't quite yielded all the information I've been looking for. Does anyone know where to find out exactly what kind of restrictions are placed on the different types of streams on these two discs? For example, all the resolutions, aspect ratios and frame rates that are allowed for each codec. And what features of each codec are allowed to be used (how many b-frames in a row, etc). Basically I want to know everything that would and would not be compliant with the two standards as far as video and audio streams are concerned. Thanks in advance.

[PuzZLeR]

There seriously is not much info about this online. The only thing I've ever come across is this:

http://www.videohelp.com/hd

It briefly mentions some H.264/AVC specs, but nothing in depth such b-pyramids, mrf's, etc.

[nonoitall]

Hey sorry it took me a while to respond - was away for a few days. Thanks for digging that up. Basically I want to back up some 23.976fps DVDs with x264. For now, I'm going to package them in MKV files and burn them to DVDs, but eventually, I plan to move them onto a higher capacity disc when they become mainstream. (And of course, it would be nice if those discs would play on a standard player.)

So, if I can make the streams compliant with HD-DVD and Blu-ray standards now, it'll save me the time and quality-loss of re-encoding the movies later. But from the look of those specs, it doesn't look like either standard supports 23.976fps 480p content. Do HD-DVD and BD have some sort of equivalent to 3:2 pulldown that would allow a 23.976fps stream to comply with their standards? Thanks in advance again!

[Sagittaire]

@REM >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
@REM >> HDDVD 480p
@REM >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>

x264.exe --threads 1 --keyint 14 --min-keyint 1 --vbv-maxrate 14000 --vbv-init 1.0 --vbv-bufsize 7500 --mvrange 255 --level 3.2 --nal-hrd --bframe 2 --bime --weightb --ref 1 --mixed-refs --direct auto --deblock -1:-1 --bitrate 1800 --pass 1 --stats "x264_stat.log" --qcomp 0.75 --ipratio 1.10 --pbratio 1.10 --partitions "all" --8x8dct --me "hex" --subme 5 --aud --sar 40:33 --cqmfile Sagittaire.cfg --deadzone-intra 6 --deadzone-inter 6 --aq-strength 0.25 --aq-sensitivity 5 --progress -o 480p.h264 Encodage_HD_NTSC_480p.avs

x264.exe --threads 3 --keyint 14 --min-keyint 1 --vbv-maxrate 14000 --vbv-init 1.0 --vbv-bufsize 7500 --mvrange 255 --level 3.2 --nal-hrd --bframe 2 --b-rdo --bime --weightb --ref 3 --mixed-refs --direct auto --deblock -1:-1 --bitrate 1800 --pass 3 --stats "x264_stat.log" --qcomp 0.75 --ipratio 1.10 --pbratio 1.10 --partitions "all" --8x8dct --me "hex" --subme 6 --no-fast-pskip --no-dct-decimate --trellis 1 --aud --sar 40:33 --cqmfile Sagittaire.cfg --deadzone-intra 6 --deadzone-inter 6 --aq-strength 0.25 --aq-sensitivity 5 --progress -o 480p.h264 Encodage_HD_NTSC_480p.avs

[nonoitall]

Is that like a 1st and Nth pass with options that would make the stream compliant with HD-DVD and BD specs? If so, which options can be changed? (For example, I assume the bitrate could be changed without breaking compatibility, so long as it wasn't ridiculously high.)

[ronnylov]

I beleive the specifications on videohelp is the maximum values. Or is it not allowed with MPEG-2 that origins from HDV format (1440x1080i) on HD-DVD? Does this mean I have to reencode it to 1920x1080 resolution to make a standard compliant disc?