Whenever I try to convert a file in .mpg format to .avi format with Auto Gordian Knot (2.45), I get the following error.... I've tried converting it 3-4 times but the same error... Ss the result, I get low bitrate (then the desired)..... can anybody help me out....

AutoGK 2.45
OS: WinXP (5.1.2600).2
Job started.
Input file: [Input File Path]
Output file: [Output File Path]
Output codec: XviD
Audio 1: Audio Stream 0 MPEG
Subtitles: none
Format: AVI
Target size: 72Mb
Custom resolution settings: fixed width of 640 pixels
Audio 1 settings: VBR MP3 with average bitrate: 128Kbps
Started encoding.
Demuxing and indexing.
Processing file: [Input File Path]
Source resolution: 720x480
Found NTSC source.
Source aspect ratio: 4:3
Analyzing source.
Source is considered to be progressive.
Output will contain 7570 frames
Encoding audio.
Audio1 size: 3,699,168 bytes (3.53 Mb)
Overhead: 302,848 bytes (0.29 Mb)
Video size: 71,495,456 bytes (68.18 Mb)
Running compressibility test.
Duration was: 2 minutes 6 seconds
Speed was: 16.16 fps.
Compressibility percentage is: 188.86
Using sharper matrix
Switching b-frames off
Chosen resolution is: 640x288 ( AR: 2.22 )
Predicted comptest value is: 106.09%
Running first pass.
Duration was: 4 minutes 14 seconds
Speed was: 29.75 fps.
Expected quality of first pass size: 128.36%
Trying to adjust settings.
No adjustment is possible
Warning: final AVI will likely be undersized.
Running second pass.
Duration was: 6 minutes 15 seconds
Speed was: 20.15 fps.
Job finished. Total time: 15 minutes 25 seconds