Just to let you know that you are not the only one baffled by this. I have encountered the same problem. I am just as curious as you as to why this happens...I hope someone can help us.
I was wondering: what kind of file did you try to write? Was it an AVI file or a DivX file?
The size of the file is 698MB but in brackets next to it is (732,719,104 bytes).
The thing that confuses me the most is the actual movie file (AVSEQ1) when converted into VCD. That is what increases by about 200mb. I think that's where the problem is and I don't have a clue how to solve it :(
If they are in .AVI format, use VirtualDub to split, as follows:
1)Load your original (DivX-compressed or otherwise) .AVI into VirtualDub or NanDub
2) Set BOTH "Video" and "Audio" to "Direct Stream Copying"
3) From the "Edit" dropdown menu, select "Set Selection Start"
4) Move slider to approximate halfway point
5) From the "Edit" dropdown menu, select "Go to next keyframe"
6) From the "Edit" dropdown menu, select "Set Selection End'
7) From the "File" dropdown menu, select "Save as AVI" - Save as a new filename (e.g. "Movie1of2.avi").
8) From the "Edit" dropdown menu, select "Set Selection Start"
9) From the "Edit" dropdown menu, select "Move to End"
10) From the "Edit" dropdown menu, select "Set Selection End"
11) From the "File" dropdown menu, select "Save as AVI" - Save as a new filename (e.g. "Movie2of2.avi")
If they are in MPEG-1 format, use TMPGEnc, as follows: