Thanks for the web cast - I didn't use it much - but did get my Linux box to display it with the old codecs - well done! The fun and games with the codecs for the live broadcast made me think about the format for the archives. The problem of data formats and long term archive is well known. Data has been lost due to lack of equipment to read the media. The problem with lack of code or specification to parse data probably hasn't hit yet but is becoming more likely with more and more proprietary standards that need a specific piece of code to read it. RIPE meeting archives are likely to be around for a long time. To make sure future generations can still view them I suggest the webcast archives are encoded in a well know publicly specified codec like MPEG rather than a transitory proprietary standard like the ones we had problems to support even today. I suspect that I will be able to find an MPEG decoder in 10 years time more easily than one for the codecs that were used for live broadcast. Using the latest codec-du-jour for the live broadcast is not a problem, the important point there is to get as much quality for your bits in a codec that is available on the current popular platforms, it's just the long term archives that need to be in an open standard. Chris. PS I've confused the various terms open, closed and proprietary etc. The important points for archiving are that they are well known, widely implemented and well documented so that in 10 years we can find or build an application that understands them.