would this work?

If I was to rip an entire movie to my hard drive , then run the VOB files through ReMpeg2 to bring down the bitrate , and then through SpruceUp to convert them back into VOB's , and then swap the Video_TS.ifo and BUP files from the original rip back into the new VIDEO_TS folder that SpruceUp made. Would doing this keep the original menu? Or will all the chapter points and pointers be off? Is there a way to fix them if they are?

HELL, NO, IT WON'T WORK. 

my files don't appear to be uploading.......... 

I'll try again..........:confused:

http://www.vcdhelp.com/tools.htm 

If I can't just post it for you, go find ifoedit and imgtool here. Sorry.