VMworld is well known for its breakout sessions, hands on labs and Solution Exchange. I believe for the first this time this year there were also so called vBrownBag Tech Talk sessions. These are kind of informal, short technical sessions of which some for some reason did not get accepted as a breakout session by VMware.
A group of very knowledgeable guys started the vBrownBag team a while ago in the US. In the meanwhile in Asia/Pacific there is a similar group. Plans are to start a vBrownBag initiative in Europe and Latin America.
Brownbag by the way comes from America where people who share the same interest take their lunch in a brownbag and come together to a session where someone presents about a subject they are interested in. It could also be a lunch meeting.
Long story short: Julian Wood of Wooditwork.com wrote a blogposting including links to all recorded vBrownbag sessions at VMworld 2012 Barcelona. As the sessions are not that long, and are presented by very knowledgeable speakers, worth looking at it!!
The table below shows the planned sessions.