MPEG2 codecs - do I have the right ones?

[Bansaw]

I am using a computer to render video and I am convinced that I don't have good enough codecs on it.
I'm not sure:
a) which ones I have exactly
b) where to get really good ones
c) how to produce an Mpeg2 quality video that plays on most computers/players

I ran a free program called Gspot to identify my codecs.
Does anyone have an idea if I'm using a below-standard codec?

Thanks!



Gspot analysis (shortened version)


MDVD Alex MicroDVD Video (hacked MS MPEG-4) http://www.tiasoft.de/
AMPG Array VideoONE MPEG Array Microsystems
AEMI Array VideoONE MPEG1-I Capture Array Microsystems
ASV1 Asus Video Asus
VCR9 ATI VCR 9.0 ATI Technologies
VCR1 ATI Video Codec 1 ATI Technologies
VCR2 ATI Video Codec 2 ATI Technologies
VYU9 ATI YUV ATI Technologies
VYUY ATI YUV ATI Technologies
DXTC DirectX Texture Compression Microsoft
DXT1 DirectX Texture Compression Format 1 Microsoft Corporation
DIVX DivX 4 (OpenDivX) Project Mayo
DVC DVC/DV Video IEC 61834 and SMPTE 314M
MPG3 FFmpeg DivX ;-) (MS MPEG-4 v3) ?
DIV1 FFmpeg OpenDivX ?
FLJP Field Encoded Motion JPEG D-Vision
M4S2 Fully Compliant MPEG-4 v2 simple profile codec Microsoft
H264 ITU H.264 ITU
mJPG Motion JPEG -
MJPG Motion JPEG -
MPGI MPEG Sigma Designs
MPEG MPEG-1 Chromatic Research
MPG4 MPEG-4 Microsoft
I420 RAW I420 ?
RGBA Raw RGB w/ Alpha * No codec needed
MP2v S-Mpeg 4 version 1 Microsoft
MP42 S-Mpeg 4 version 2 Microsoft
MP43 S-Mpeg 4 version 3 Microsoft
MP4S S-Mpeg 4 version 3 Microsoft
UMP4 UB Video MPEG 4 http://www.ubvideo.com
WJPG Winbond JPEG? ?
WMV1 Windows Media Video V7 Microsoft Corporation
XMPG XING MPEG XING Corporation