DivX to Mpeg-1

From my experience, this isn't as cut-and-dried as it appears - depending on what's being used to decode them, some software calves on certain DivX movies; this seems ("seems" = looks like, based on my observations, before anyone corrects me) to hold particularly true for videos encoded with a variable bit rate (VBR) rather than a constant bit rate (CBR) video stream.

Try Nero. Alternatively, try TMPGEnc (throw it into google, you'll get a Japanese address) with the "PAL VideocCD" or "NTSC VideoCD" settings loaded (should you want VideoCD, which I presume you do, as there's no advantage in converting a DivX to AVI to watch it on a computer unless it's a Mac or something)

Basic summary: it appears to me that some will, some won't; when it didn't work for me I recompressed the video using a lossless codec (Huffyuv - google again) within Virtualdub (.org) and threw that at the compressor. As a warning, though, this requires many multiples of the size of the original file in free disk space.

Also, bear in mind that if your target is V(ideo)CD, a VCD will only store a little over an hour (I think it's 70 mins) of video; so you may want to split your video into pieces if it's longer than that.

Happy encoding...
Gadget