Get a dvd recorder with a hard drive. You have far more control over what you burn onto a disc, and can do pretty much what you are asking. even though for editing VHS is still more versatile, even if the qusality isnt as good - I like using audio dub etc!
quote:
----- DVD-RAM: the most durable of all. I bought 20 of them as soon as I
got the DVD recorder, and so far I have used just one of the discs for
time shifting. The entire disc gets formatted as much as once or twice
per week, and it�s still going strong. The plus side of using a
DVD-RAM is that you can record something, and edit it using the DVD
recorder, that�s one thing that can�t be done using a DVD-RW. The
DVD-RW only allows you to erase a full segment, ot to keep it, but you
can�t edit the segment. Also, after editing the DVD-RAM, you can
reclaim the free space left by the editing and use it to record more.
That�s something that can�t be done with a single VHS tape unless you
make a copy of the edited version. Why is this useful? If you are doing
a timer recording of a TV show, want to keep it, but also do you want
to erase the commercials. You can erase the commercial after the
recording, and also get some free space in the process. The only
disadvantage of DVD-RAM discs is that they are not playable in most DVD
players (unless they are designed to do that), while a DVD-RW can be
playable by most DVD players after finalizing the disc. -----
from thread dvd recorder on newsgroup sci.electronics.repair
hope this helps!