VOB Edit Quality

When you use any of these software to split a vob file, will you loose quality. I don't think so, but like to make sure.

bbTools 1.9 - good demuxer and mpeg2 analyzer
ChapterXtractor - extracts chapters from an ifo for MDVDP
ChopperXP 2.7 - VOB cutting utility with preview facilities. Website
DVD Shrink 3.0 beta 5 - extremely fast DVD transcoding utility. Website
DVDFab - Splitting, Stripping and Analyzing DVDs the easy way. Website
DoItFast4U 1.3.0 - re-authoring made easy. Website
DV Tool 0.24 - Swiss army knife for digital video <g>
FileMerger - a general filemerge tool
IfoEdit 0.96 - edit IFO files, create IFO files, stream processing for DVDs, DVD image and burning capabilities included. Website
IfoUpdate 0.77 - merges PGC/Cell structures between .ifo files
ImgTool Classic 0.91 - DVD image generator based on mkisofs. Website
ImgTool 1.00.6 - DVD burning program (requires Nero 5.5.8 or later installed).
jrdmux - bbTools optimized for speed
MakeItEasy 0.16 - allows you to keep menus and extras when using DVD2One
ReAuthorist 1.0.0 - putting DoItFast4U & DoCCE4U output together to a fully working Scenarist project ready for compilation. Website
VobEdit 0.6 - VOB editing utility, can split, demux, remux and join VOB files. Website
vobSplit 2.6 - used to split VOBs that can still be authored afterwards
Vobtools - various VOB related tools

Without getting in to any specific tool, if all that is done is to split or extract VOBS (or streams in them) and these are not further compressed (re-en/transcoded) then the original quality will be maintained.

Thanks for all your help DrMDj. You have share alot and have taught alot.

You have a good day.:)