Try this list of tools with user comments: Tools - Video software and downloads - VideoHelp.com
You can also use it to find converters, muxers, authoring tools etc..
I use Imgburn to burn and several freewares for conversions depending on exactly what input and output I want. Just about any free converter that uses HCenc and doesn't crash should give you good output. Try AVStoDVD, FAVC, well, use the list tool in the link.