Smaller file size?

[Aislin]

Hello,

I'd like to encode files smaller than 1.8GB for about 20 minutes of video, without sacrificing video or audio quality, and I am at a complete loss. Here are the settings I currently use. Is there anything I can change that would help?

I know encoding in H.264 would help, but doing that in Ubuntu Linux seems near impossible because VLC fails to do so even after x.264 is installed on my system. I have tried every guide on it I can find and none of them seem to help, so I'm stuck using MPEG2... unless there is some kind of "H264 encoding for dummies" guide out there.

Settings:
Video - MPEG-2 + MPGA (TS)
Deinterlace

Encapsulation:
MPEG-TS

Video codec:
MPEG-2
11346 kb/s
29.97 fps
720 x 480

Audio codec:
A52/Ac-3
128 kb/s
48000