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-   -   More workflow clarifications, planning VHS to DVD project... (https://www.digitalfaq.com/forum/video-workflows/1489-more-workflow-clarifications.html)

admin 07-24-2009 07:41 PM

Yeah, demux in TMPG, that'll do it.

I would not worry about the workflow anymore, just do what you need to do to get the project finished. Refer to the workflow next time you start something from the tape, from the beginning, and you can go step by step again, in a proper order.

9500k for under an hour is technically correct. It's a super bitrate, and probably won't look much different from 8000k, for your exact conditions.

Stay with what you know. If DVD-Lab works now, because you've demuxed the .MPG, then just do that. I don't see the need to make this even more complicated (and expensive) with yet another new program that you have to learn.

Superstar 07-24-2009 09:11 PM

Yeah, DVD-Lab is starting to confuse me. I seperated the old, unrestored audio from each "part" in TMPEG as we realized I needed to do, and then I brought the first part into DVD-Lab and it started demuxing it and then when it was done with the video it started demuxing the audio, how it could've done that, I dont know, because I not only split the audio from the video, I then deleted it as soon as I was done doing that, and as you saw the restored audio is in a seperate file.
So, I decided to encode each "part" seperately now with elem vid. setting, so hopefully this will finally work.

Superstar 07-24-2009 10:09 PM

I like the new bitrate calculator you gave me, quick q...
I put in the 4400 that you told me to, and I left the audio box blank because I'm not encoding the audio with the video, and for a 31 min "part" it has two boxes for bitrate, the top box says 2383 and the bottom says 19071
Why is there 2 boxes? I assume I should ignore the top box that says 2383, but for the 19071, can I actually use that? Or should I just use the 8000 or so. I figured the 19071 would be massive, but I just wanted to double check.

admin 07-24-2009 10:19 PM

You made a mistake. Your video file will be too big if you don't include the audio space in the calculation.

Re-read the post where I linked to the calculator, there were some notes mentioning which boxes to ignore. Neither ~2400 nor ~19000 sound like correct numbers. You did something wrong, I'd imagine. Remember that 4400MB is for a single-layer DVD.

Superstar 07-24-2009 10:42 PM

Well..I just tried again, and I set the top box (final size) for 4400 MBytes and for Length 0:31:40 for audio bitrate I put in 384 kiloBits, I just guessed at 384 because in TMPEG AC3 in the settings box I put 384 for the bitrate setting, so I guessed it was the same thing?
My results were 2323 in the top box (kilobytes) I believe I ignore this box since I'm using kilobits
and in the bottom box (kilobits) it now says 18586

I was thinking because as you saw in the email there was going to be 5 seperate "parts" on this particular DVD, so 18586 would be huge I would think. I know you said the 19000 sounds correct, so Im guessing 18586 is wrong also..

I guess I'll just go with 9500 in MC bitrate for this particular "part"
Do you think 11-12,000 would be pushing it?

admin 07-24-2009 11:07 PM

I don't really know what you're doing anymore.
The maximum bitrate allowed by DVD is either 10080k or 9800k, depending on the audio type in use.

Superstar 07-24-2009 11:20 PM

Check your email, I just sent a screenshot.

Superstar 07-25-2009 04:13 AM

Well, I got all 5 "parts" encoded in MC. I then went into DVD-Lab and brought all 5 seperate videos and audios in (the ones you saw in the pic) and combined it totalled 11.66 GB. As we know, that's not good.

The first "part" was 1 hr and 1 min. I set the bitrate for 8000 in MC. When I brought it into DVD-Lab, it came up about 4.20 MB by itself, so I knew I was in trouble right away.
The last 4 all ranged from 15-30 min or so, and I set each one to encode in MC with a bitrate of 9500.

Obviously those bitrates were way too high. I'm going to have to re-encode all 5 of these "parts" once again, so what would be a safe bitrate for me to use for each one in MC?
I have 25 more videos in this set to make. I'm thinking the set will take me over 60 DVDs to make, it's going to take me forever to finish it at this rate :(

DVD-Lab has a tool in it that you can use to make the video clip smaller until it fits in the space allowed for a DVD 5, should I use that on each one, or do you think I should re-encode each one again in MC?

admin 07-25-2009 02:43 PM

A bitrate calculator tells you the max available bitrate, based on the total length of audio and video you\'re trying to put on a disc. I can only guess you did not enter a correct total number. It sounds like you told the calculator you only had an hour or less, but in actuality, you had at least 2-3 hours worth of material for the single disc.

Quote:

DVD-Lab has a tool in it that you can use to make the video clip smaller until it fits in the space allowed for a DVD 5, should I use that on each one
Quality will suffer. I would never do that, no.

Superstar 07-25-2009 03:45 PM

Actually, that\'s exactly what I did..I don\'t know if you saw the picture that I sent last night yet, but what I put was the actual length of each "part" in the calculator.

So for example, the first part was 1 hr and 1 min..that\'s what I entered, and that\'s why I got the bitrate of like 19000..and the next one was 30 min..so I went back and entered 30 minutes...

I guess I\'ll just go with a bitrate of 3200 or so for each "part" when I encode them seperately in MC. Does that sound like a safe number?

Superstar 07-25-2009 03:50 PM

Actually, now that I think about it, the short parts, the 30 min ones, I sent for bitrates of 9500 and when I imported them to DVD Lab they only came out to like 2.4 MB each..so I don\'t know..I guess I\'ll just keep encoding the 1 hr part with different bitrates and hopefully it\'ll fit


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