Change Xvid data rates?

[jayfromoz]

I have two files that have different audio and video data rates. The first has a video/audio data rate of 973/125 kbps and the second has rates of 1149/135. I want to be able to reduce the second file's data rates to match the first, and then join them together. Every video joiner I've tried, (bar one) says they're incompatible. With the one that did work, (Easy Video Joiner) the second part's audio was out of sync.

Can anyone recommend a suitable FREE tool, as well as a few helpful hints?

Thanks in advance.

[guns1inger]

Avisynth - then the data (bit) rate doesn't matter as the output will be uncompressed. Load into virtualdub and compress as necessary.

[jayfromoz]

I've extracted both files to uncompressed avis using VirtualDub, but when I try to join them using the AlignedSplice command, I get an error saying the video frame rate doesn't match.

Both files have video/audio data rates of 141416/1536 kbps. What else could be wrong?

FYI, here's the contents of the script:

AlignedSplice(AVISource("e:\start.avi"), AVISource("e:\end.avi"))

I tried the UnalignedSplice command, but that didn't work either

[celtic_druid]

++ and + are probably easier (AVISource("e:\start.avi")++ AVISource("e:\end.avi")
Also no need to decompress since that is done on the fly. You can change the framerates in AVISynth. assumefps(), convertfps(), etc.

[jayfromoz]

Both avis have a frame rate of 29.970fps, so I'm confused. Sorry for sounding like an ignorant n00b, but that's what I am

The avisynth doco is not the best, so would anyone be kind enough to expand on exactly what needs to happen, i.e. write me a quick script? Also, I'm not entirely sure how to recompress the joined files in VirtualDub, so I'd need some advice there as well.

Once again, sorry for being so ignorant, but I could spend days wading through all the doco when some helpful soul could point me in the right direction.

Thanks in advance.