Subtitle timing

[WhyACow]

Im not very familiar with all the technical terms but I have tried searching for this problem and cant find anyone with the same problem. When I try to encode a DVD to SVCD with english subs and jap audio, the english subs are fine on the most part but some sections of the SVCD have the subtitles flash super fast so that you cant read them. I check the DVD and its fine. Im not sure whats causing it to occur. Any help would be greatly appreaciated.

dvd2svcd subtitles file.ini
-----------------------------------
[SUBTITLES0]
ListID=32
EntryID=0
StreamID=0
OutputID=1
Language=English
LangCode=en
PicNo=759
Mode=4:3
Selected=1
Palette0=0
Output0=0
Blend0=0
Palette1=16777215
Output1=65535
Blend1=15
Palette2=8421504
Output2=1973790
Blend2=15
Palette3=16711680
Output3=8421504
Blend3=15
[SUBTITLES-TIMECODE00]
StartTime0000=00:01:31,140
EndTime0000=00:01:33,380
PTS0000=91140
ENDPTS0000=93380
Filename0000=en100001.bmp
Width0000=187
Height0000=40
YPos0000=484
--------

The error
--------
StartTime0323=00:20:01,620
EndTime0323=00:20:02,220
PTS0323=1201620
ENDPTS0323=1202220
Filename0323=en100324.bmp
Width0323=245
Height0323=74
YPos0323=447
StartTime0324=00:20:02,220
EndTime0324=00:20:02,820
PTS0324=1202220
ENDPTS0324=1202820
Filename0324=en100325.bmp
Width0324=203
Height0324=40
YPos0324=447
------------

So you can see its the subripping process thats causing it and its pretty difficult to go in and manually find these errors and change them.
Does anyone know a solution to this?