DivX Playback Stuttering

I’ve got things running smoothly on an ATV 2 with the 5.3 seas0npass tethered Jailbreak.  Media is mostly h.264 in mp4 files being served from a NAS over Samba.  Works great.

 

I just started trying to serve up DivX encoded AVIs this weekend, and encountered terrible stuttering.  I thought it might be network problems, so I tried a hardline ethernet connection, and still had stuttering problems.  This leads me to believe buffering is an issue, or the processor can’t keep up.

 

Any experience out there with large DivX files (these files average about 2Gb per hour) playing effectively on this setup?  TIA…