joining avi files

[paulh129]

Please could someone help. I have 3 avi`s and want to join them together but when i use virtual dub it say that the video streams have different data formats. I have looked at the frame size and they are all different but the rate is the same 25 fps. The data rate are also different but the audio is ok. Is there any way i can join these file together.
Thanks in advance

[jimmalenko]

IMHO you'd be best converting two of the AVIs to the same specs as the 3rd AVI if you want to join them properly.

Is your goal just to join them and leave it as one AVI, or will you then convert to VCD/SVCD/DVD ?

[paulh129]

Thanks for the reply. Yes i want to one movie from the 3 avi`s and then convert it to dvd.
How do i convert the avi`s so i can join them and what is the best program to do it.

[jimmalenko]

If your goal is DVD, then you don't need to join the AVIs first - simply convert each AVI to DVD-compliant MPEG (hint: use a bitrate calculator to assist you) and then use your authoring software to join them. The result will be much better for a number of reasons, such as audio synch, and the retaining of as much quality as possible.

[paulh129]

Thanks for the help jimmalenko but i have probs. I have managed to join as you said and now i have a mpeg that plays in media player but when i burn it as a dvd there is no sound. I have anelised it and the audio has a frquency of 44.1 khz. How can i change it to 48 khz. In dvd lab it says it is a ac3. Please help. Thanks in advance.