Xvid to dvd question

[Shifty268]

I have some videos in DivX form that i want to convert to DVD. They are about 350mb each im using vso convertXtodvd to do this. The less you put on a disc at once the better bitrate it will give you so the better quality but....... I want to fit as many episodes on each disk but without loosing any video quality. The thing is if you put say 1 episode to be converted todvd and put on the disc it will make it 4.7 and the same for if you put 5 episodes. SO how would i know the perfect amount to put on one disc without loosing quality, as you can't gain better quality from the source (350mb Xvid videos).

cheers

[guns1inger]

350mb is about 45 minutes, give or take, per episode. You can realistically put 2 - 3 episodes per disc (single layer) before the quality starts to drop right off. The optimum is 2 episodes.

If you are serious about quality, learn how to use avisynth, filters and a good stand alone encoder. You might be able to get 4 - 5 episodes on a disc then by using alternative resolutions and other tricks.

The best solution to your problem is to buy a player that is Divx certified. You can fit 12 episodes to a disc without any re-encoding. The downside is that you will see just how poor the encoding on most of these episodes really is (trust me, I know).

[Shifty268]

2 to 3 on a dvd disk, i put 5 on the quality it pretty good i was just wondering about more. i mean bit/rate of the Xvid files is about 1000 bit/s and the mpeg2dvd is about 2700 bit/s. So how can ya get 2700bit/s from a source that is only 1000 bit/s. Very confussing

[LloydAZ]

I personally won't put more than 2 - 45 minute episodes per disc.

I start off with good quality Xvid files.

Minimum Bitrate 2000
Maximum Bitrate 8000
Average Bitrate 6200

AC3 Audio @ 256kbps

This gives me good quality encodes, and leaves about 200 MB of space left over to author the disc.

[guns1inger]

There is no correlation between mpeg4 bitrate and mpeg2 bitrate. Asa general rule, to maintain the same quality you need 3 to 4 times the bitrate, however this is not hard and fast. If you are happy with 5 episodes to a disc, go for it.

[Shifty268]

Cheers for that, does that same rule apply for MP3 To mpg2 or ac3 audio - has to be 3 to 4 times the bitrate?

[ZippyP.]

... does that same rule apply for MP3 To mpg2 or ac3 audio - has to be 3 to 4 times the bitrate?

Nope, I find that they're about the same. 192 is about right for me for all of them, provided the AC3 is 2 channel of course.

[jagabo]

Use a constant quality MPEG2 encode. Select the quality you want and let the files come out to whatever size they do. Every file will have exactly the right bitrate to deliver the quality you specified. Then burn as many as will fit on each DVD. I do this with 22 minute TV episodes all the time.

[Shifty268]

What prgram are you using

[jagabo]

What prgram are you using

If you're asking me... TMPGEnc Plus.