It doesnt matter how big the file is but how long it is. If it is less than 80min long than you can burn it onto a vcd no matter how big the file is. For example i use the program tmpgenc to decode avi's to vcd format and it really doesnt matter what the end file size is just the length of the avi file. Ive done this with avi movie files and it takes two cd-r's for one movie. so just go into media player and drag the scroll bar to the end of the avi to see how long (minutes) it is. if it is less than 80 minutes per part you can burn it to the cd-r. It may take 2 like i said but it can be done. i use nero but i'm sure whatever burning program you have as long as it can burn a vcd will work fine. also have you tried copying down the error message you get and putting it in google search. Thats usually how i trouble shoot stuff.