a weird lossless dvb encoding

Hi guys, I have a dvb-s card. so I captured some mpeg2 vob files. and i have virtualdub-mpeg2. and it encodes well. but i wanna ask something. my encoder details are right? or am i wrong? i want only near a lossless encoding.. not lossless. XviD 1.1.3 Final Build Advanced Simple L5 NO b-frames No Adaptive No Qpel No Interlaced Encoding No Global Motion No VHQ for b-frames Yes Use Choma Motion 6-Ultra High, 4-Wide search. No Trellis Maximum I-Frame 250 (for 25FPS) 2 31 2 31 2 31 2 31 Sharktooth's EQM v3HR matrix (Mpeg custom) Two pass encoding Bitrate @ 2600kpbs Mp3 Lame 256kpbs CBR and when i do encode. then i see on Xvid Status I-VOP min 5 max 6 P-VOB min 3 max 7 thank you!

without B-frames quality is very very bad... two b-frames is ok.. what you think..

Also, why not trellis? It's more useful than VHQ=4.