My first attempt at burning DVD came quickly to a stop with the following error:
Could not make a thumbnail. Make sure you have the appropriate decoder installed. -47010
After much searching through various forums, including Roxio's own forums, the decoder(s) that got it to successfully add a file to the project was the DJBCP Codec Pack 2.1 Light.
During installation, I believe I have only installed the following:
* Decoder 5.1,
* XviD-1.0.1 Final,
* DivX 3.11 Alpha, and
* AC3 Filter 0.7b.
After many successful disks, I also installed the VobSub 2.3 to enable burning (hardsub) and viewing of subtitles.
A whole series later ... it stopped working.