On Fri, Nov 30, 2007 at 12:43:51AM +0100, Stefan Reinauer wrote: > > Together with reserving space at the end of the header. > > Space reservation? What is this about? Some extra bytes for future use, the more bytes the longer before we need to change the format. I think 64 would be more than enough. No-one will ever need more than 64 bytes. //Peter