[Vorbis-dev] Splitting Ogg Vorbis file

[ogg.k.ogg.k at googlemail.com]

> So my questions are: what does "overlap-add nature of vorbis" means?

Decoding a Vorbis packet makes use of the two previous packets
(that's also known as 'preroll'). Thus, if you're missing those packets,
you'll get different data out (though I don't know *how* different
that output would be).
You'd need this even if you want to cut at a packet granularity.