|You can't play .AVI videos in a standard DVD player unless it supports DivX / DivX Ultra. If your player doesn't support DivX, you will need to convert the .AVI to DVD format. To do that, you'll need a program such as ConvertXtoDVD, DeVeDe, or similar. And yes, the file size will grow considerably, but it will fit on a standard 4.7GB DVD disc.|
However, if you want to watch the video on your PC, all you need to do is update your video/audio codecs & use Windows Media Player, or install VLC.