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Stdhep files for an Ecm=500 GeV SM data sample are
available at ftp://ftp-lcd.slac.stanford.edu/ilc/ILC500/StandardModel/ .
There are 487,603,537 events (250 fb-1 luminosity) with -80% electron/ +30% positron polarization,
and 474,837,805 events (250 fb-1 luminosity)  with +80% electron/ -30% positron polarization.

Due to the presence of some high cross section processes the events are not completely unweighted.
The event weight must therefore always be considered when analyzing events.
This weight is stored in the variable EVENTWEIGHTLH in the stdhep common block HEPEV4.

Events corresponding to hundreds of different processes were stored in random order in these files.
The variable IDRUPLH from the common block stdhep common block HEPEV4 is used to identify the process.
Suppose that an event has IDRUPLH=14995 . The information about the generation of this event
is found in the directory ftp://ftp-lcd.slac.stanford.edu/ilc/ILC500/StandardModel/run_output/w14995/run_01/^{Image Added} .
For example the log file is ftp://ftp-lcd.slac.stanford.edu/ilc/ILC500/StandardModel/run_output/w14995/run_01/whizard.log^{Image Added} ,
the whizard input file is ftp://ftp-lcd.slac.stanford.edu/ilc/ILC500/StandardModel/run_output/w14995/run_01/whizard.in^{Image Added}
and cross section information is in ftp://ftp-lcd.slac.stanford.edu/ilc/ILC500/StandardModel/run_output/w14995/run_01/whizard.n3n3n3n3ss_o.out^{Image Added}