Hi,
burn AVI videos into DVD disc, maybe DVD Creator will allow you to convert, insert blank DVD disc into computer and import AVI files into iMacsoft DVD Creator software.
http://www.imacsoft.com/dvd-creator-mac.html
Besides AVI files, the program can also burn AVI, WMV, MKV, MPEG, FLV, DivX, etc. video files into DVD disc with high quality.
http://imacsoft.com/how-to-convert-avi-or-mpeg-to-dvd-for-mac.html