try using vso DivX to dvd converter there is a freeware version and a paid version here is the link http://www.afterdawn.com/software/video_...xtodvd_free.cfm or visit the homepage and get the paid version its worth the $29 and it can handle even more file formats. good luck
answer is you cant without converting them,and then the AVI files will balloon up in size,meaning i doubt you will fit no where near the amount of episodes you would like
you could buy a dvix player (very cheap these days),i picked one up from svp for £25
i fit approx 6 x 700mb AVI movies on there.i use Nero to burn them as a data disk,they just load up in the dvix player,with a menu and all