HD DVD to Blu-Ray questions:

[SUPERBIF]

I'm new to this, but I'm trying to convert my HD DVD to Blu-Rays.

There's some strange things I found out.
I use evodemux to strip and only have 1 video and 1 audio track.

When I have stripped and take it into tsmuxer. I can see it says 1080i and 29.97fps.

I then press remove pulldown so it says 24000/1001.


My questions are:

1. Why does it not show 1080p and 23.976fps in the first place?
2. Is it okay to remove pulldown to force it to 23.976?
3. When I use mediainfo on the original evo file it shows 24.8 Mbit bitrate, but when I take the converted Blu-Ray it shows 18 Mbit. Shouldn't the bitrate be the same when it's not compressed?
4. Also I can see mediainfo shows audiodelay sometimes were tsMuxer doesn't show any. What should I count on?
5. Does it matter that the original in mediainfo shows (scan order 3:2 pulldown) and in the convertet shows (scan order button field first)?

[Trahald]

1. HD-DVD inherited the restriction DVDs had of ntsc needing to be 29.97fps.
2. Sure. Thankfully blu-ray has no such restriction
3. hmmm.. i'll pass on this one.. not sure. iwt it should be the same, not sure if it has to do w/pulldown and its confusing mediainfo.
4. ??
5. yeah.. its ok.. you did that by turning off pulldown.

[SUPERBIF]

Thx for the help:)
I read on another forum that evodemux was not good and BDClown or toNMT was suggested. What do you think?

Also I read that removing pulldown to force it to 23.976 was not a good idea, since tsMuxer is not that great to that. Is that correct?

[shon3i]

since tsMuxer is not that great to that. Is that correct? I am not sure about Tsmuxer, but eac3to is definitly safe for removing pulldown. Be carefull when converting HDDVD to Blu-Ray, not all Video or Audio streams are compatible with Blu-Ray standard. HDDVD allow up to 7 bframes, while Bly-Ray only 3. Also some audio streams on HDDVD comes without core like TrueHD and DD+, while on Blu-Ray need to have AC3 as core inside same stream.

[rik1138]

3. When I use mediainfo on the original evo file it shows 24.8 Mbit bitrate, but when I take the converted Blu-Ray it shows 18 Mbit. Shouldn't the bitrate be the same when it's not compressed?


The metadata that states what the bitrate is is rarely accurate. I import video into Scenarist and get a bitrate of 39mb all the time, when I know it was encoded at half that. The only way to accurately get the bitrate of an encoded file is to read every frame in the file, and calculate it out. That takes a lot of time though, so most programs just read what's recorded in the metadata, or the bitrate of the first few frames.

In the end, don't worry about it. If you aren't telling it to re-encode the video, the bitrate isn't being changed. Just metadata being written differently. And must remuxers don't have re-encoding capabilities anyway, so you know they aren't messing with the video.

[SUPERBIF]

Thx for the reply guys. One last question. When I in eac3to choose to have the uncompressed audio it rips to eac3. However tsMuxer doesn't recognize that extension pr. default so I have to select all files and add it, but will that cause problem in the end or is tsMuxer able to handle eac3 audio?

[shon3i]

You can safetly rename *.eac3 to *.ddp for tsmuxer its same. But that stream isn't compatible with Blu-Ray standard because don't have core DD stream.

E-AC3 and TrueHD streams for Primary Audio must have AC3 core. Since there is no freeware E-AC3 or TrueHD encoders avaible, you maybe need to convert that stream to AC3 or DTS or LPCM.

[SUPERBIF]

Thx I want to use it on my Popcorn Hour.
I didn't rename the extension but just choose all files and tsmuxer accepted it.
Is it correctly understood that you say I will get trouble with this method?
I really don't want to downconvert my audio but want the original audio uncompressed.

[shon3i]

I didn't rename the extension but just choose all files and tsmuxer accepted it. It's completly same, and yes in both ways you will get completly untoched source. This is just file extension.

[SUPERBIF]

It's completly same, and yes in both ways you will get completly untoched source. This is just file extension.

What do you recommend regarding pulldown.
My HD DVD's are 1080i and 29.97, but have used eac3to to remove it so it goes 1080p 23.976. Have only tested with one movie, but on certain scenes where there's fast movement for instance a scene where a guy walks where you can see lines because of the fast movement, as if it's not deinterlaces when convertet to progressive or perhaps it's because it's from 29.97 to 23.976. What's the explanation do you think and what would you recommend me to do?

[laserfan]

What do you recommend regarding pulldown.
My HD DVD's are 1080i and 29.97, but have used eac3to to remove it so it goes 1080p 23.976. Have only tested with one movie, but on certain scenes where there's fast movement for instance a scene where a guy walks where you can see lines because of the fast movement, as if it's not deinterlaces when convertet to progressive or perhaps it's because it's from 29.97 to 23.976. What's the explanation do you think and what would you recommend me to do?Should have worked. What does the eac3to log look like, and by what process did you convert it to what type of file. And the playback method is... the PCH?

[SUPERBIF]

Should have worked. What does the eac3to log look like, and by what process did you convert it to what type of file. And the playback method is... the PCH?

You can see the link below with the attached log.

I have been using the HD-DVD/Blu-Ray Stream Extractor, perhaps that's the fault? I just want a GUI since it's easier. It's located here.
After I stripped with eac3to I get VC1 file and eac3 audio.
I put it in tsMuxer and let it build the Blu-Ray structure and last play it on my Popcorn Hour.

Thanks for helping me debug btw.

http://forum.doom9.org/showthread.php?t=141829


http://www.2shared.com/file/9739440/fab812ce/1_3_video_-_Log.html



EDIT: Just found out it was not the movie that has fault but the device.
Thx. again.