Burning a Blu-ray

Bern wrote on 3/17/2010, 7:30 PM
Hi,

I'm trying to burn a Blu-ray. The only format I could find was the main concept m2t. All the other formats where listed as video streams only, Oddly enough (to me at least), the main concept blu-ray format wants by default to save the video and audio seperately (video to m2v and audio to mpa).

I get a good m2t file with both video and audio, but when I use the file in PowerProducer, the audio is lost in the Blu-ray burnt file. However, when using an AVCHD file (m2ts), the video and audio work out fine in the Blu-ray burnt file.

This is my first attempt at burning a blu-ray disc, so to say I'm super green would be a fair assessment.

Hopefully my explanation is understandable.

Thanks for any assistance.

Comments

PerroneFord wrote on 3/17/2010, 7:46 PM
They are SUPPOSED to be separate files. The audio needs to undergo compression with a different method than the video to be BluRay compliant (DVD is the same way too). So encode the video stream, then encode the audio stream. If you name them the same (filex.m2t / filex.wav) DVDA will put them together when you load one or the other into the timeline.
Bern wrote on 3/17/2010, 11:09 PM
I rendered into the two formats. m2t and mpa, however my burning software (powerdirector) would not accept those 2 formats.

How do I use these formats to burn to Blu-ray?
PerroneFord wrote on 3/17/2010, 11:49 PM
What is an MPA? Audio is best left as .WAV.

This is a Vegas support forum. I know nothing of Power Director, sorry.
Rob Franks wrote on 3/18/2010, 5:47 AM
Not enough info. What is your source? Are you burning REAL blu ray or fake avchd disks? Which Vegas do you have... Pro or studio?
Bern wrote on 3/19/2010, 6:07 PM
MPA is what Sony Vegas Pro 9.0b rendered the audio to using the MainConcept MPEG-2 format (codec?) Blu-ray 1920x1080-60i 25 Mbps video stream.

My source video is AVCHD coming from a Hitachi HD Camcorder. It records at a variable bit rate approx. 15 Mbps, of which audio is 256kbps (straight from the manual). I've imported the source video into a program called "MediaCoder" and it has reported the video from being 15 Mbps to 17 Mbps.

I what to do 2 things.

1) Be able to play the AVCHD rendered project on my Blu-ray player using a SD card. (I have been able to do so using Power Director, saving to file instead of burning to disc. It must be saved in AVCHD format for my Panasonic to play the SD Card).

2) Burn the AVCHD rendered projects to a Blu-ray disc because the projects exceed what a DVD can store.

I've hooked up my computer to my Panasonic Plasma TV (50 inch 1080p) and played the Sony Vegas Pro rendered AVCHD (m2ts) and learned the quality is excellent. As best as I can see, it is as good as the original.
However, when I use PowerDirector to make the AVCHD SD card there is a slight loss of quality and when I use PowerDirector to make Blu-ray discs there is a significant loss of quality.

Does anyone have any suggestions on what program I could use to make the AVCHD Sd Cards (It can not be in Blu-ray format, the Panasonic won't read it) and burn AVCHD rendered video onto a Blu-ray disc without any quality loss.

Thank you for any feed back.
willphil wrote on 3/19/2010, 7:14 PM
I have a Panny Blu-ray player. I use Vegas to edit then render to AVCHD, Then use MultiAVCHD to author an AVCHD disk or sd card. MultiAVCHD has special settings for Panasonic players because they adhere strictly to the ACVHD specifications. MultiAVCHD and the other component programs are all free. You can read more and download at http://multiavchd.deanbg.com/


Bern wrote on 3/19/2010, 9:49 PM
Okay, I'll give that a look but I don't mind paying for a proper quality program for burning to Blu-ray disc.
MTuggy wrote on 3/19/2010, 11:35 PM
Do you have DVD architect? That is the simplest way to create your Blu-ray disc. Just render out an m2v video file, then an ac3 audio file with the exact same name (I just put them in the same folder to make it easy to find them later). In DVDA, create your project, select the BD properties and compression you want, create the menus you want, then burn the whole project. It has worked 100% of the time for me - either burning to a DVD disc for a 18 min project or less (at full res, 25 mbps stream) or to Blu-ray discs.

Mike