BD25 and HD Audio best settings

[broughsta]

Hi all

Im getting used too and playing around with DVDFAB backing up blu-rays.

i want to use 25GB discs and if possible keep HDMASTER audio as i have a AV system.

my question is,

If i am compressing a 33GB main movie to a 25 GB disc with the intention of keeping the HD Audio.

am i

a) best compressing the film at 80% with the setting used in DVDFAB

or

b) compressing the file to say a 25GB MKV??


with the intention of keeping the best video bitrate??


also, i have a CUDA enabled graphics card, i dont know what this is. Should i be using this, or some other settings.

and are there any tweaks in the settings people use to get the best results.

thanks in advance.

Damien

[rjl2005]

I can only relate my experience in compressing to 25g with and without the HD audio. The higher the compression rate, the lower the quality of my copy. Thus, if I can achieve a compression rate of only 20% or less with HD audio enabled, I go for it. If the compression rate with HD audio is around 40% or higher, I disable the HD audio, which lowers the compression rate.

In my experience the higher the rate of compression, the lower the quality of the final copy. Thus I will trade audio for a lower compression rate.

I hope this helps. Also, if my advise is incorrect, hopefully someone will chime in.

--rjl2005

[rjl2005]

I missed you question about the CUDA. You have to experiment with those settings. I have had discs that I can copy with CUDA enabled and other discs for which I had to disable all hardware codecs and just use the software codecs. As far as I can tell, it is a trial-and-error process.

Good luck!

[hanibal]

I would never compramise the audio quality unless u don't have hd audio player.

[Garry E]

You mentioned the option of creating a 25 gig MKV. I think personally the MKV solution is the way to go although I think you would find the resulting file would be more like 5 - 8 Gig.

There is a profile you can use to retain the full HD audio with no compression (MKV H264 -audio copy). This uses the H264 codec to shrink the movie but no compression on the audio.

The H264 codec is amazing and I think you would find the result pretty much identical in quality to the original. (I can't pick the difference)

The down side is you loose your menu structure but this is offset by the fact that you can fit 3 -4 movies (more depending on size to each disc) provided your blu ray player is cabable of MKV playback and I assume from your question that it is.

The cuda option relates to your video card. The software offsets some of the processing to your graphics card to share the load with your CPU. From dredging through the forums it appears to be a bit hit and miss regarding quality and is the first thing they seem to tell you to turn off when things go wrong.

Perhaps you could try turning off Cuda and Lightning recode to start with and when you are happy with the result try experimenting with these settings and gauge the result. You will find a quicker process time but the quality may suffer.

[broughsta]

Thanks for getting back people.

i am tempted to go the MKV route and keep the hd audio.

is there a way to set it to 25gb, because i tried one last night and it came in at 28gb??

Ive watched 8-12gb mkv before and found the quality to be good, but there is pix-elating in dark scenes due to the compression..


i am hoping if i set this to 25GB the compression raitio will be more effective then say the standard compression used in the DVDfab.

i think in general though as long as its not compromised by more then 20% ill just stick with DVDfab settings and tweaks some settings??

dose this sound like a good idea??

are 25GB MKV with HD audio in general better then 25GB rips using DVDfabs alternative compression settings??

thanks

[LDLDL]

Please... I need an explanation of this MKV of which you speak!!!
I would love to keep the HD audio as I too have a wonderful AV setup. How would I do this?
However, I really don't want to spend a whole day compressing one disk.
Thanks for any information.

[hanibal]

ive tried mkv remuk and they dodnt work with my lg player playing off a hard drive. I dont car about the size aslong as i can keep the hd audio.

[Garry E]

Please... I need an explanation of this MKV of which you speak!!!
I would love to keep the HD audio as I too have a wonderful AV setup. How would I do this?
However, I really don't want to spend a whole day compressing one disk.
Thanks for any information.

It's BLUE RAY RIPPER > MORE > MKV then at the profile window use drop down arrow and select > MKV audio copy

After that I pretty well go with the default settings although I have GPU acceleration turned off and also lightning encode.

Ripping time is approx 1hr 20min on a I5 750 with 12gig ram running Win 7 Pro 64bit. Results are excellent. I save to NAS and view via networked WDTV media player (no DTS master audio unfortunately but plays the core no problems) See attached

[hanibal]

to bad about the master thats what i would like to keep.

[Garry E]

Thanks for getting back people.

i am tempted to go the MKV route and keep the hd audio.

is there a way to set it to 25gb, because i tried one last night and it came in at 28gb??

Ive watched 8-12gb mkv before and found the quality to be good, but there is pix-elating in dark scenes due to the compression..


i am hoping if i set this to 25GB the compression raitio will be more effective then say the standard compression used in the DVDfab.

i think in general though as long as its not compromised by more then 20% ill just stick with DVDfab settings and tweaks some settings??

dose this sound like a good idea??

are 25GB MKV with HD audio in general better then 25GB rips using DVDfabs alternative compression settings??

thanks

You really have me confused here. I just ran through the settings on an MKV rip I have been playing with last night and it beats me how you get a 25GIG outcome. The only way I know to alter the size is by choosing >FIXED FILE size in the Edit window and pulling the slider to the right. When I do this I the maximum file size comes up as 9.4 GIG (see attached PNG4)

By way of comparison I tried my old favorite RIP BOT h264 and it returned a file size of 18Gig but it took over three hours to process and to my eyes I could not tell the difference in quality. I hasten to add that Ripbot can be very tricky to set up for some movies often requiring a few extra apps eg BD Info & TS muxer all of which take extra time whereas DVD Fab seems to find the right file to rip automatically > it's GUI is much more user friendly.

I have looked at the tutorials available for DVDFAB and found them to be very basic and they don't really explain much about the various options.

You say you have watched a 12Gig MKV and it had pixellation but this is something I have never encountered on any of the rips I have done. Perhaps you can try the method I described to LOLOL and tell me what you think of the result. Just as an after thought have you tried hooking a hardrive up to the usb port on your BD player for playback > it may save you some discs while you're experimenting.

Hopefully one of the moderators may jump in here if there is a better way than what I have described > we are all learning as we go.

PS. The L drive shown in my previous post is a virtual drive with an ISO image mounted (thought I better mention that before I get a rap over the knuckles from Signals)

[Garry E]

to bad about the master thats what i would like to keep.

No you misunderstand me. The WDTV media player I use won't pass through the Master audio > only the core part of it (Standard DTS). The full DTS MA soundtrack is still retained without compression in the MKV. Hopefully WD may do a firmware update in future but if not I may have to update media players if DTS MA is truly that much better. I am trying a BD25 copy at the moment as my BD player handles DTS MA along with my amp. Just not as convenient as HDD backup but hopefully it will let me gauge the difference in sound quality.

I have read (I think on the DTS web site) that the core part of the DTS MA soundtrack is a big improvement on the original DTS anyway. That is to say they reckon that anyone with standard DTS system will notice an improvement in sound quality even though you only hear the core and I must admit I have found this to be true as have many of my mates > we always rip the DTS MA.

I hope the copy to BDR that I am running at the moment (no compression Main Movie only) will show me whether or not it is worth upgrading for the sake of the extra non compressed components of the DTS MA soundtrack

[hanibal]

I tried the mkv audio copy and get no audio put get picture running through my LGBD590. even if i use mkv remux sometimes i get can not play this audio format. So alot of the times i have to use AVI and take the hd out which sucks cause i like the hd audio.

[Garry E]

Hanibal is your LGBD590 connected via HDMI to an AVR capable of decoding DTS MA? And if so have you set your BD players audio output to PRIMARY PASS THROUGH

[hanibal]

yes and yes