Iriver X20 DVD to AVI conversion. What Codec and best method.

If I right Click a working file and check the properties it says Stream Name Video2.

Exporting from GSpot it says

VIDEO_CODEC_NAME WMP v9 (VC-1 Simple/Main)
VIDEO_CODEC_STATUS Codec Status Undetermined
VIDEO_CODEC_TYPE WMV3

And according to the specs from the website it says

* Extension : AVI
* Video Codec : WMV9 SP, MPEG-4 SP
* Video Resolution : max 320 x 240
* Video Frame : max 30fps
* Video Bit Rate : max 512kbps

Taking all that into account what would you use to go from a ripped DVD (.Vob) into whatever file format it needs. So far I am stuck ripping a DVD/Auto GK/iRiver software, very time consuming. Tried TmpgEnc on some DivX/Xvid I already have and I don't see any option to convert to any of the compatible files above, so I am stuck to the iRiver software and it is SLOOOOOOOOW.

Cheers.