Can you fit multiple movies on bluray media?

[rz514]

Hi everyone!

A single layer bluray is 25gb and a dual layer is 50gb... seeing that bluray videos can go from 800mb (720p rip) to 8gb (1080p rip) -- my question is... Can you burn multiple .mkv files to bluray? just like we would do with a dvd and fit a few movies or episodes. If possible, how? if not, can you explain to me a little bit why so i can understand rather than a single no answer

thank you everyone!

[guns1inger]

A so-called 720p rip at 800MB is size is going to be pretty poor quality, or simply means the source was 720p, but what you have isn't.

That said, yes you can put multiple movies on a BluRay disc, just as you can put multiple movies on a DVD. It all comes down to bitrate and correct authoring.

Look at MultiAVCHD for a tool that will allow you to compile multiple movies, create a menu, re-encode the non-compliant files (which will probably be most of them) and output a structure ready for burning.

[rz514]

A so-called 720p rip at 800MB is size is going to be pretty poor quality, or simply means the source was 720p, but what you have isn't.

That said, yes you can put multiple movies on a BluRay disc, just as you can put multiple movies on a DVD. It all comes down to bitrate and correct authoring.

Look at MultiAVCHD for a tool that will allow you to compile multiple movies, create a menu, re-encode the non-compliant files (which will probably be most of them) and output a structure ready for burning.

thank you for your help! i will look into that program.

About your comment on the quality... maybe i am explaining myself wrong, but the video is actually really good quality! here is the mediainfo information on the video part: this info will probably give you a better idea than my newbie thread lol

Video
ID : 1
Format : AVC
Format/Info : Advanced Video Codec
Format profile : High@L3.1
Format settings, CABAC : No
Format settings, ReFrames : 2 frames
Codec ID : V_MPEG4/ISO/AVC
Duration : 28mn 4s
Bit rate : 3 718 Kbps
Width : 1 280 pixels
Height : 720 pixels
Display aspect ratio : 16:9
Frame rate : 23.976 fps
Color space : YUV
Chroma subsampling : 4:2:0
Bit depth : 8 bits
Scan type : Progressive
Bits/(Pixel*Frame) : 0.168
Stream size : 747 MiB (89%)
Language : English
Color primaries : BT.709-5, BT.1361, IEC 61966-2-4, SMPTE RP177
Transfer characteristics : BT.709-5, BT.1361
Matrix coefficients : BT.709-5, BT.1361, IEC 61966-2-4 709, SMPTE RP177

[guns1inger]

Short running time - episode, not movie. You could probably put 4 or 5 of these on a DVD as an AVHD disc. Cheaper than a bluray blank.

[rz514]

Short running time - episode, not movie. You could probably put 4 or 5 of these on a DVD as an AVHD disc. Cheaper than a bluray blank.

I'm not too sure what you mean by, "on a DVD as an AVHD disc" -- like, to burn the .mkv files on a dvd as an avchd disc? so that the dvd now avchd can be read on a bluray player? and multiavchd can do this?

if so, awesome! thanks a lot useful information indeed

edit: oh, i forgot i wanted to ask you. I don't think multiavchd shows the effect on the quality when you add video files... if that is the case, how can you know how many videos can you put? depending on the size, length, etc...

I've been told elsewhere to fit ~2 dvd quality movies on a single layer dvd to maintain quality... in xconvertdvd it shows you how the quality is affected but i dont know about multiavchd program to judge how many files for a bluray media, or DL dvd media... example, can you fit like 20 episodes 800mb on a 25gb blu ray disc without losing quality?

[guns1inger]

MultiAVCHD will author a structure called AVCHD, which is similar to bluray, but burnable to DVD Blanks. The PS3 and many BD players will also play these discs. If the MKV files contain compliant video and audio then MultiAVCHD can author these without re-encoding.

Any indication of quality change is, frankly, bullshit. There are too many factors to get a useful value, and simply saying low/medium/high means nothing. People still tell me that a 2 hour movie at 624 x 288 squeezed into a 700 MB Xvid encoded AVI file is high quality/DVD quality when it clearly isn't. Quality is a subjective thing, and it really comes down to what you are prepared to accept.

It is possible to put a 720p movie (not TV episode, but movie) on a DVD blank at reasonable quality. It isn't bluray source quality, but it is fine for most viewers. MultiAVCHD could author 4 of these to a standard 25 GB BD structure ready for burning.

[rz514]

MultiAVCHD will author a structure called AVCHD, which is similar to bluray, but burnable to DVD Blanks. The PS3 and many BD players will also play these discs. If the MKV files contain compliant video and audio then MultiAVCHD can author these without re-encoding.

Any indication of quality change is, frankly, bullshit. There are too many factors to get a useful value, and simply saying low/medium/high means nothing. People still tell me that a 2 hour movie at 624 x 288 squeezed into a 700 MB Xvid encoded AVI file is high quality/DVD quality when it clearly isn't. Quality is a subjective thing, and it really comes down to what you are prepared to accept.

It is possible to put a 720p movie (not TV episode, but movie) on a DVD blank at reasonable quality. It isn't bluray source quality, but it is fine for most viewers. MultiAVCHD could author 4 of these to a standard 25 GB BD structure ready for burning.

thanks alot for all the help and the quick reply! much appreciated

sorry for all the questions and more to come, but i am new to this scene! i appreciate the quick help.

when you say " MultiAVCHD could author 4 of these to a standard 25 GB BD structure ready for burning" -- if these files are 800mb each as in my original post, 4 of those will fit for sure, but since that is 3.2gb, would it be possible to add more, or it that the max allowed by the program or bluray structure? should i just fit the files until the disc is full? or MultiAVCHD will take care of letting me know the max for the media.

should i follow this guide for all of what we talked about?


Convert Home Videos to AVCHD and Bluray

http://adubvideo.net/how-to/convert-home-videos-avchd-bluray

[mrswla]

when you say " MultiAVCHD could author 4 of these to a standard 25 GB BD structure ready for burning" -- if these files are 800mb each as in my original post, 4 of those will fit for sure, but since that is 3.2gb, would it be possible to add more

If all of your files are small like that, then yes keeping adding more until you end up with approx. 25gb.

[edDV]

We should start with the Blu-ray player you intend to use.

- all play a properly authored BD or DVD

- many play an "AVCHD" disc (BD/BE/DVDR media, MPeg2, VC1, h,264 all in m2ts wrapper)

- others play from a supported list of codecs and containers from root or from arbitrary folders.

[rz514]

when you say " MultiAVCHD could author 4 of these to a standard 25 GB BD structure ready for burning" -- if these files are 800mb each as in my original post, 4 of those will fit for sure, but since that is 3.2gb, would it be possible to add more

If all of your files are small like that, then yes keeping adding more until you end up with approx. 25gb.

got it, thanks.

[rz514]

We should start with the Blu-ray player you intend to use.

- all play a properly authored BD or DVD

- many play an "AVCHD" disc (BD/BE/DVDR media, MPeg2, VC1, h,264 all in m2ts wrapper)

- others play from a supported list of codecs and containers from root or from arbitrary folders.

thanks!

[madmax80]

Hi,

I have the following situation with the multiAVCHD. I am making blu ray out of multiple mkv files but during the movies I see that the sound it's delay and not synchronized anymore with the video. The same with subtitle, but this is synchronized with the sound...

Do you have some ideas why this is happening?

Thanks

[madmax80]

The above problem was solved by changing the video system from NTSC to PAL.

I have seen that multiAVCHD doesn't know 5.1 sound.

I made from the same movie the BD files needed for blu ray with 2 different programs:

1 tsMuxer - and worked fine, the audio is fantastic
2 multiAVCHD - 2 audio is on 2 channels and not 5 as it should be.

Anyway, I will use tsMuxer from now on.