Need to convert these .AVIs to work on Toast on my Mac

[Jeikobu]

Hello, I am having alot of difficulty getting these .AVI files to run on my Macintosh. The files play the correct duration, but there's a different problem with each that doesn't allow it to work. For the first file, there's no audio at all (my speakers work fine), and the picture is entirely black. I tried using DivX Doctor II but all it fixed was the audio. The video is still not appearing at all. I tried using DivX Converter (which took a long while), and the only change was that the picture now is all white rather than black. I wanted to burn this file to a DVD, but putting it in Toast Titanium didn't change it either. I've been looking all over the internet and have downloaded stuff hoping it would help and I have no luck (Flip4Mac, for example, did nothing at all). Quicktime tells me there may be something about this file that requires a codec I don't have, so it takes me to their page, but I didn't see anything there either. http://www.apple.com/quicktime/resources/components.html

More information about the first file:
Format: WMV3, 640 x 480 pixels size, Millions (of colors I assume), MPEG Layer 3, Stereo, 48,000 kHz
FPS: 24.04
Playing FPS: (Available while playing)
Data Size: 290.64 MB
Data Rate: 1785.75 kbits/sec

One difference I've noticed in AVI files I can play is that the Format is DivX 5.0 rather than WMV3. This apparently has something to do with me not being able to view these on the Mac. With my PC, with VLC player especially, they run fine. But they don't work on my Mac, even with the Mac version of VLC, and even so I don't see how it'd help with getting Toast to see it. All I can see to do is convert these files. I posted about this on a different forum and was told they can only be converted on a PC. But I have no idea what to use to convert them. Here's the information on the other two files:

Second file:
Video, but no audio at all
Format: Generic MPEG-4, 704 x 400, Millions
'ms ', Stereo, 48.000 kHz
FPS: 23.98
Playing FPS: (Available while playing)
Data Size: 919.70 MB
Data Rate: 1765.84 kbits/sec

Third file:
No video, and the audio glitches constantly.
Format: MP42, 640 x 360, Millions
MPEG Layer 3, Stereo, 44.100 kHz
FPS: 23.98
Playing FPS: (Available while playing)
Data Size: 183.64 MB
Data Rate: 3925.53 kbits/sec

If anyone can tell me how to convert these, whether it be on a Mac or a PC, I'd be very grateful (and I'd really prefer not to have to buy anything to do it). I really need these to work on a Mac, preferably on the Toast Titanium program, so I can make DVDs out of them. I'm really at a loss. Thanks.

[terryj]

Well, unfortunately, you will have to buy something,
and that something is ffmpegx.

Your first file is windows Media version 3. You can rule out
doing anything with it...it can only be converted on a PC.

The second and third files are a Generic Mpeg-4 file, and
MicroSoft-MPEG4, respectively. ffmpegx will convert these
files no problem, I've used it in the past to do so.
STF here, or the ffmpegx forum three forums down
on the main page
for "convert avi with ffmpegx" for instructions.

[Jeikobu]

Well if then, could you please tell me how to do it on a PC?