Well, I have finally given up. While converting an Mpeg to DVD might be simple in theory, in practice it is impossible unless one was to give up one's job and spend the rest of their life in front of the computer. Not only does the conversion takes days or weeks (depending on the size of the original file and the size it will come out at) but it can then take another week downloading all the bits and pieces to actually get it onto the DVD. From now on, unless it fits on a CD, any video file will be burned onto DVD as a data file - five minutes instead of five days and while its nothing flashy, it can still be played.
That Blaze program looks OK, but has a steeper learning curve than advanced Microsoft Access, something I doubt very few people could be bothered with. Nerovision (like anything Nero) just takes up hard disk space - it spends five hours converting only to report a "fail" at about 95% of the job.
SonicDVDit is about as much use as Sonic the hedgehog - again give up work or forget it. I spent a whole day waiting for that thing to convert a 1.3GB file, only for the finished product to come out at 5.4GB - too big for the DVD disk. Asking on a forum what to do next, I was told to split the file. I could have done that with the original 1.3GB file and put it on two CDs if I wanted it on two disks and it would only have taken me ten minutes!
Well, stuff it, lovely day and I'm going for a walk.