Many thank's to ALL !
@ welthqa !
Now I'm able to load DV file to VDub but I still have problem to read DV file with AviSource
I have to do some more experiments to see what will come .
@Dialhot
How can i find out which type is My DV file : 1 or 2 ???
I'm preparing it with Pinnacle studio deluxe v9 .
bman

I don't know why but uninstall and reinstall of Avisynth 2.54 solved the problem .
Now I can load avs script to CCE and TMPGenc with no problems .
Thank's again to all
bman

welthqa,
The best I was able to do for 90 minute VCD was CQ70, max 1000 kbps, min 300 kbps, with 352x480 frame size. Video quality is better than normal VCD, a little fuzzy but not blocky. This may help you: for 800MB VCD, average data rate (video + audio) kbps = 106666 / video length in minutes.

you started with DV right? which is 720x480 IIRC. why go down so much on the resolution? do you find that the end result of a higher cq is worth the tradeoff of the resolution? I go down to 528x480. if I am going to sacifice lines, should i lose the vertical or horizontal ones?

Which is better the higher cq or the higher resolution? I've seen some outstanding DVD to KSVCDs that are 120 or more and end up looking much better than what i'm able to come up with for DV to KSVCD. Also, KVCD or KSVCD? I've read that better compression with the KSVCD allows for higher CQ? is this true?

This question is the most aoonying one on the forum and it is posted again and again and again !

DO THE TEST BY YOURSELF ! and let your eyes decide what is best for you.

Thank you.

welthqa,
I started with a DV tape. You have to decide what is best for you. I was just trying to help you out. There is no best, just lots of trade offs.

welthqa,
I forgot to mention, that I also reduced the audio to 96kbps for the 90 minute VCD.
I do not think there is any way to make miniDV recordings look as good as a DVD. DVDs are made from film with $100,00 cameras and $100,00 lens that have much higher resolution than any miniDV camera. I would be happy if I could get my videos to look as good as the videos produced by the TV stations with their $50,000 cameras.

sounds fair enough. I'm getting a great picture exept for like random arifacts. not really even on motion places, just kind of random. Any idea what this is?

@Dialhot: ouch bro, I was just kind of asking what the consensus was on this matter.

welthqa,
What was the frame size and bit rates you used? Do they go away if you double the bit rate? If the pricture isn't good enough, it usually means that the data rate is too low. There is a trade off between data rate and quality. You have to decide what you want - better quailty or more video per CD. I know you know that, just a reminder. AviSynth will not do the impossible, but it will improve the video quality at low data rates.

Yes. And what I answered IS the consensus on that

was using 352x480, 528x480 the cq was at 25 i think 500min 3000 max, but i wasn't happy with it.

welthqa,
352x480, 528x480 are NTSC sizes and 25i is PAL. I do not know if that is causing problems but it isn't correct. Do you want PAL? I think 352x288 and 544x576 would be PAL frame sizes. Check the KVCD templates for PAL versions. I am in NTSC part of the world so I do not use PAL. 3000 max bit rate should give excellent results. But remember, it can't look any better than the original. Also most DVD player won't play VCDs if the bit rate is over 3000 kbps. I use 720x480 at CQ80 2800 max and 24fps when I want best quality (but you can't get 90 min on one CD at that rate). I do not think I can be of much more help. It seems like you are able to get resuslts. You just need to experiment a lot and read some of the online guides. There is a lot to learn and it takes some time.

@Peter1234

25 was the value of his archived CQ! (If I do understand him right) and not the framerate he encoded in.[/list]

welthqa,
If incredible is correct, then that is your problem. A CQ of 25 is way to low. I think it should be at least 60.

I think you understood right. And I'm not surprise with such amazing bitrate range : 500 - 3000

incredible,
Thanks, I think you are correct, I read it too quickly.

so the bitrate range should be about 300-1000 if i wanted aprox 90 min, and max 2800, with what I'm guessing, maybe 60 min on an 700mb cd?

I used to encode to svcd and fit about 60 min on a cd, and it looked pretty good. Shouldn't I be able to fit more using kvcd and have at least the same quality, if not better? I'm out of town now so i'll have to do more tests when I get back, but I try stuff every day, I couldn't get the prediction to work so much, so I just have it encode once at night, and then look it over and change stuff in the morning. let it encode and check it again at night. That cq of 25, was just one of the tests I happened to be doing. I was seeing which was better for me, the cq or res, and I think I like both very high. Guess it's time to price compare some dvdr drives.

welthqa,
Yes. KVCD should give better results but I don't know how much. I think that I only get about a 10% reduction in data rate with KVCD for full screen DV video relative to TMPGEnc mpeg1 with same script and settings (but I haven't really tested it much). But there is a big increase in quality with KVCD when compared to cheap software that only encodes standard VCD at 29.97fps and doesn't use scripts. When you read about 2 hours per CD that is usually for letterbox video which only has half as many pixels per frame as DV. If you were happy with your SVCD results I suggest you start with those settings for KVCD and see how much you can decrease the max bit rate without degrading the quality you were getting. I also suggest you make a short 30 second test video to use for experimenting so you don't have to wait all night for each test. If you use the equation I gave you it should give you an idea of what the max bit rate can be for different length videos. The minimum bit rate is just there because some players have a problem if the data rate drops too low.

welthqa,
I got a 16.3% reduction in data rate using KVCD instead of mpeg1 in one case for a 352x240 video with high motion (everything else the same). I think that is the most I have seen.