blu-ray m2ts file to standard dvd?

[raymondtrudeau]

i have a blu ray m2ts file on my computer now for blu ray dvd player...

i have 3 other tvs in the house with standard dvd players...i would like to know if i can convert that blu ray m2ts file down to standard dvd...so i can play it in the other standard dvd players...

i know i know people would say why? but it is easier untill the bluray players are cheaper .thanks

[EPiPH0NE]

I dunno maybe:

Demux streams (not sure if you would have to) -> create AVS script -> encode to MPEG2 with desired encoder. You're not gonna get lossless quality on DVD as I think it can only handle 10Mbit.

[setarip_old]

@raymondtrudeau

Hi!i have a blu ray m2ts file on my computer now for blu ray dvd player...i know i know people would say why? but it is easier untill the bluray players are cheaperAs I see more and more posts similar to yours, I can't help but wonder and will now ask directly - If you don't own a BluRay player, why did you purchase a BluRay disc, rip it to your computer and then ask how to convert it to a standard DVD? Why didn't you simply purchase a standard DVD?

[Guest]

The way I read the post was he has one bluray player for one TV but the other TVs have only SD players.

[setarip_old]

@neuron2

Hi!

If that's what "raymondtrudeau" is saying, then my apologies. Perhaps he'll post back here and clarify whether he has a BluRay standalone player...

[raymondtrudeau]

@neuron2

Hi!

If that's what "raymondtrudeau" is saying, then my apologies. Perhaps he'll post back here and clarify whether he has a BluRay standalone player...


yes i have one blu ray player for my sanyo..but i have 3 other tv's with standard dvd players...instead of buying 2 copies of the same movie i thought i could convert it to standard for the kids room..........

and to answer my question...there is a program called convertxto dvd...it works good

[setarip_old]

Thank you for clarifying - and please accept my apology for misinterpreting that portion of your initial post to this thread...

[Guest]

In response to the abuse report sent:

Just as one is permitted to "backup" an HD DVD to SD Xvid, one can backup an HD DVD to SD DVD. The point is that the poster *legally owns the content* on the disk. He is not making copies for distribution, but only for playing it on all his display devices.

[raymondtrudeau]

Thank you for clarifying - and please accept my apology for misinterpreting that portion of your initial post to this thread...

no problem....

thanks to everone for help with everthing

[Zwitterion]

There are a number of advantages DVDs created from Blu-ray discs have in comparison to store bought DVDs:
- better image quality (no edge-enhancement/oversharpening)
- no aspect ratio error (many mastering studios often use 720 as active image area)
- you can add custom audio and subtitle streams.
And if you live in PAL-land:
- proper PAL speed up using sound stretching plugins.


a quick guide (for NTSC land):

1) eacto3 to get information about your Blu-ray.
eac3to G:
...where G: is your Blu-ray drive. eac3to lists the available playlists. Usually the first playlist is your movie. Run eac3to again with that number:
eac3to G: 1)
Now you see information about the M2TS file.



2) Audio
For a DVD you need an AC3 file that is 448 kbps or less, or a standard DTS file of 768 or 1536 kbps. If you are lucky, there is an already DVD compliant audio track on the disc:
For AC3 (replace the '4' with the right number):
eac3to G: 1) 4: audio.ac3
For DTS (choose a DTS or a DTS Master Audio track):
eac3to G: 1) 3: audio.dts -core

If there is no DVD compliant audio track on the disc, you must transcode. For that, choose the highest quality audio track on the disc and do the following:
eac3to G: 1) 3: audio.ac3 -448

There are many, many more things you can do with eac3to, just look at this (http://forum.doom9.org/showthread.php?t=125966) thread.



3) Video decoding. There are three possible Blu-ray codecs:

a) h264/AVC:
open the M2TS with dgavcdec(nv) and index it. You don't need to demux the audio since you have done that in step 2. Open the dga file with AviSynth:
DGAVCDecodeNV_AVCSource("test.dga") #if you used dgavcdecnv
DGAVCDecode_AVCSource("test.dga") #if you used dgavcdec

Spline36Resize(704,480)

Another way is to open it with DirectShow. This is useful when you have CoreAVC, for example:
DirectShowSource("H:\BDMV\STREAM\00001.m2ts")

Spline36Resize(704,480)

b) VC-1:
open it with DirectShow. Make sure before that the M2TS file plays in MPC-HC with the VC-1 boxes unchecked.
DirectShowSource("H:\BDMV\STREAM\00001.m2ts")

Spline36Resize(704,480)

c) MPEG-2:
Use dgmpgdec to index the stream:
DGDecode_mpeg2source("test.d2v")

Spline36Resize(704,480)

As always DirectShowSource is a possibility:
DirectShowSource("H:\BDMV\STREAM\00001.m2ts")

Spline36Resize(704,480)



4) Bitrate calculation:
I suggest the videohelp calculator (http://www.videohelp.com/calc).



5) Video encoding:
Use HCenc. It is a free MPEG-2 encoder that will produce valid DVD streams of high quality. Start HCgui, open your AviSynth script, enter an output filename, enter average and maximum bitrates, select profile 'best', make sure aspect ratio is '16:9'. Click 'make DVD compliant'. All other setting can stay at default.
If you want to tweak quality further, enable 'Adaptive Quantization' and 'luminace gain'. Both settings usually improve quality; try different strengths on a short segment of your source to find some good values.
If you notice blocking or think that your encode is not sharp enough, try different matrices. A rule of thumb is that matrices with lower values produce sharper result with more blocking. Matrices with higher values smooth the result, but will lessen encoding artifacts. AVAMAT6 and AVAMAT7 are good general purpose matrices, for medium and low bitrates respectively. The FOX matrices are good for high bitrates.
If you plan to use chapters, you should import them in the 'Preview/Chapter' tab. I-frames will be set at the beginning of the chapters which will improve accuracy.

6) Muxing:
Ifoedit is a simple and reliable muxer. Start it, select DVD Author, select 'Author new DVD'. Import the m2v file that was created by HCenc, and the audio file from eac3to. Choose a destination folder and hit OK.



You'll notice that Ifoedit also has subpicture and chapter support. To get those from Blu-ray to DVD is a little bit harder.

Subtitles: extract the sup from the Blu-ray with eac3to, convert to srt with Suprip (OCR is involved), then render the srt file to a DVD compliant sup file with SubtitleCreator. Also save the palette. After muxing with Ifoedit you have to switch the palette of the newly created ifo file with the correct one from the exported palette file from SubtitleCreator. You can do this with Ifoedit --> Subtitle color --> Copy/Paste Colors.

Chapters: export the chapter file with eac3to. Then use a spreadsheet application to convert the times to framenumbers to get a chapter list like this:
0
1234
4526
7342

Ifoedit just supports this format AFAIK.

[setarip_old]

@Zwitterion

Excellent, concise guide! Great presentation ;>}

[blutach]

I'd add that HC has other options such as lumgain and AQ which should be considered. And more importantly, users should also consider using a custom matrix more in tune with the average bitrate of the video to be encoded.

And muxman (http://www.mpucoder.com/Muxman/index.shtml) is almost now de rigeur for muxing.

Regards

[windtrader]

Yes! Excellent guide. I have been away for awhile, no not in jail, just burned out a bit with movie ripping and playback stuff.

Now that the format war is over for now. I started doing quite a bit of research into backing up BD material as I have DVD for many years. I still have a couple remaining question which I'd be happy to post in another thread but here they go for a quick answer or two from some comrades. I know my current PC is underpowered so I need to figure out how much new hardware and tools I need to do something like described in this thread.

1) What is the typical clock time required to do the rip, demux, and reencode and build steps with various PC systems?

2) How playback free and video artifact free are most people experiencing without a lot of tweaking?

Thanks

[PatRM]

I have been seeing posts all over the internet with people asking if they can convert Blu Ray to Standard Def. Also noted that a number of people replying are asking "why?" Why don't you just buy it in standard and so on. One answer is this. We have a 500 plus dvd collection, paid for, and collect old movies. Don't care if it is HD, etc as the presentation of a movie on a good dvd player and a good television usually presents a picture that far exceeds the quality one gets at the movies. That said, there are many movies (and this is hard to believe) that are not released in widescreen. One example is Roxanne with Steve Martin. It has been released, finally, in widescreen, but unfortunately only in Blu Ray. That is my reason for asking the same question. Can I find a way to purchase some Blu Ray titles and convert them? Any help would be appreciated. By help I mean just an answer to the question, and not a full blown question of why didn't you do this, or do that. I think when someone posts a question on a forum, it would help if one just answers the question. See this type of thing too much on forums.

[setarip_old]

@PatRM

Hi! Can I find a way to purchase some Blu Ray titles and convert them?

1) Rip Blu-ray using any of the following: (presently freeware) MakeMKV, (presently freeware) DVDFab Passkey, or (Payware) AnyDVDHD

2) Use MultiAVCHD to convert (movie-only) to standard definition DVD