Hi seen you post didnt know if you had been helped?.Any way all you need to do is install a avi/video joiner application search google or softpedia.com because there are tones out there even better when there free also keeping in mind that you have a program to convert avi files after you have joined them try a program called super dvd or avi2dvd or winavi those 3 programs convert and burn all in one program so its a bonus you just have to try see what works best for you any way this is just a quick bit of info to help out sorry if its a bit messy! good luck!!
as all your files are avi.Download VSO divx to dvd. You are able to batch encode all files in one hit and the output will be in an mpeg2 format or a dvd movie format. Once that is done you have a few options as to what you want to do next. 1. burn to disc with say nero /nero recode : i have is perfect and pretty straight forward or 2. use a reauthor tool like tmpgenc dvd author, add your menus etc and tailor your project to your own specifications and then use your burning suite to get it to disc 3. theres a few more:????????????????????
