"Mortimer" wrote in message
news:jOydnc_lVI04YJDVRVnytQA@plusnet...
Is there any software that can perform simple edits on an mpeg file,
such as top- and tailing it and removing commercial breaks, without
having to re-encode the whole file.
snip

Yes there is but can't remember what it's called, (possibly "Womble"),
but if you do a search on this group you should come across questions
and answers similar to what you want.


Likewise is there software that can generate DVD VOB files from an
existing mpeg file without having to re-encode?

There will always be a certain amount of (re-)encoding when authoring
the DVD (VOB) file structure.