>Peter, OK, 20% I know. CARD DUMP (which is not implemented on all systems, >I know) does give this as well. I seem to recall having heard of a C version of CARD, it certainly is a simple compression routine (we even used it in DDR for many years). >Additionally NETDATA, like the others, CARD and DISK, are machine dependant >on IBM systems, with tough decisions having to be made when non-IBM systems >try to emulate. CARD sends the data as a compressed stream w/ information on the original date and time as well as the record format (maybe LRECL too?). I doubt there would be many decisions about what to do w/ such files on most other systems. It seems to me to be a very good format (but I may be biased...). >Actually, a NEW format is really needed. I think CARD could do it all for you or could easilly be extended to add any new features you need.