I am using SUPER v2008 build 30 and here is my settings:
[Encoder]
Format=35
VidCodec=2
AudCodec=0
Encoder=0
VidBitr=18
AudBitr=4
VidScaleSize=9
MoreScaleSize=0
CustVWid=320
CustVHght=240
Cust1VWid=368
Cust1VHght=208
Cust2VWid=416
Cust2VHght=176
VidAspect=5
VidFPS=1
MoreFPS=0
Custfps=8
Cust1fps=16
Cust2fps=20
AudSample=0
AudChanl=1
VidDisable=0
AudDisable=0
VidCopy=0
AudCopy=0
Vidhq=1
Vidtq=0
Vidfasp=0
AudioSampleReference=1
AutoAudience=0
Target=0
TStarget=0
Theme=5
OutPutFolder=C:\Program Files\eRightSoft\SUPER\OutPut\
SourceFolder=C:\Share\Upload\
DSlogo=0
DSlogoMessg=*eRightSoft*
DSlogoFont=Vivaldi
DSlogoSize=28
DSlogoColor=10354879
DSlogoHlColor=16240383
DSlogoPos=4
DSJoinMux=1
DSMotion=-1
DSsmUD=12
DSfmUD=69
DSFH=0
DSFV=0
DSRevrs=0
DSTurning=-1
DSinvY=0
DSinvU=0
DSinvV=0
DSBW=0
DSFI=0
DSFO=0
DSFIsec=4
DSFOsec=03
DSInf=0
VidDeinterlace=0
BF=0
H264Stream=0
BFrames=2
EncodeDuration=0
ClosedGOP=0
GOPAuto=0
ManualGOP=15
AdjustVolume=1
EncodeVolume=6
SnapShotAt=4.3
VideoOffsetSec=3
EncDurationFor=10
CropTop=32
CropRight=0
CropButtom=32
CropLeft=0
PadColor=4670008
PadTop=32
PadRight=0
PadButtom=32
PadLeft=0
H264profile=0
H264level=1
FLVTag=
[RealProducer]
Path=C:\PROGRA~1\
Audience=0
EncodeProfile=1321
[GeneralOptions]
ShowHints=0
ShowWarnings=0
ShowCreditScreen=1
AlwaysOnTop=1
AnalyzeON=0
AviSynthON=0
PSPcnt=4
VOBcnt=10
SameSrcFolder=0
UnderScoreON=0
SameDateTimeON=0
LowerCaseON=0
[Player]
Brightness=0
Contrast=9
Hue=9
Saturation=9
FullScreen=1
Aspect43=0
Aspect169=0
Tiles=0
PlaySlow=0
PlayFast=0
Deinterlace=0
Flip=0
Mirror=0
TurnRight=0
TurnLeft=0
ShowLog=0

Then with my MediaAnalysisBox info:

SUPER © - Multimedia Analysis Box  (by http://mediainfo.sourceforge.net )
Analyzing the source file   Model.rmvb

General #0
Complete name : C:\Share\Upload\Model.rmvb
Format : RMF
File size : 432 MiB
PlayTime : 1h 45mn
Bit rate : 565 Kbps
Performer : sousuo

Video #0
Codec : RealVideo 4
Codec/Info : H264, RealVideo 9
PlayTime : 1h 45mn
Bit rate : 501 Kbps
Width : 544 pixels
Height : 308 pixels
Display Aspect ratio : 16/9
Frame rate : 23 fps
Resolution : 12 bits
Bits/(Pixel*Frame) : 0.130

Audio #0
Codec : Cooker
Codec/Info : Real Audio G2/7 Cook (low bitrate)
PlayTime : 1h 45mn
Bit rate : 64 Kbps
Channel(s) : 2 channels
Resolution : 16 bits
SampleRate : 44100

I have a computer with these spec.:

CPU:Intel Core 2 Duo E6420@2133 MHz
Ram: 2x 1024 MB DDR2-SDRAM
HD Free space:102 GB
OS:Window Vista Home Premium (without SP1)

Tried with the suggestion in the red box.