Geoff,

There is a flag bit in the PSN Type 4 header that can be used to turn off CRC 
checking. See the "Flags" field in the "Fix Header" section on this page 
http://www.seismicnet.com/psnformat4.html for more info. If you send me one of your 
PSN files that has not been saved by WinQuake I'll take a look at it.

Regards,
Larry Cochrane
Redwood City, PSN

On 4/10/2010 1:10 PM, Geoffrey wrote:
> Hello PSN,
>
> I have noticed that The event database will not accept my PSN files which I generated
> myself but will accept them if I open my file then save them from the winquake program itself,
> does this have to do with the filename or the CRC (16 or 32) since Winquake opens the
> file I create ok with no protesting. Does anyone understand why my self generated
> winquake PSN4 files will not be accepted even though they open OK within Winquake itself?
> I must not have a proper Winquake form or the files would be accepted as is.
>
> Note to all those that be present, let it be known;
> I get the proper times from Winquake if I truncate my data files at
> the exact top of the minute and do not fill in the offset time areas
> in the WQPSN4 header. People will disagree with me, but this is the only
> way I have been able to make it work 100% for myself. If I do this
> I get the proper times for each and every sample yet if I try to
> use the offsets, things are never right for ME.
> It most probably is not an issue if you created your data from
> the intended WQ software but only in the way I'm trying to do things,
> by inserting my own data into a Winquake form.
> I have modified my recording program to truncate data
> at a calibration mark this cal mark becoming the very first data sample.
> It has worked correctly in showing my data times ever since.
>
> Regards,
> geoff
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