What file are you talking about? I was referring to
DP-dp_2strun_newpupi_22.mzML
in
http://www.peptideatlas.org/repository/tmp/DP_Opti_Newpupi_filter_mzML.tar.gz
which is a 331k file with only chromatograms in it. The other file is
DP-dp_2strun_newpupi_15.mzML
which is 23mb with both spectra and chromatograms.
The WIFF has two samples, but only one sample has spectra.

-Matt


Brian Pratt wrote:
> Matt,
>  
> FWIW that's actually a 78MB file when extracted from the gzipped 
> tarball (95MB in its mzXML version). Not sure if that colors your 
> thinking.  It's RAMPAdapter doing the heavy lifting.
>  
> Brian
>
> On Mon, Oct 5, 2009 at 12:47 PM, Zhi Sun <[email protected] 
> <mailto:[email protected]>> wrote:
>
>
>     Hi Matt,
>
>     Actually the tandem took longer time on loading the smaller mzML
>     file, which
>     is only 331k. I think this is a MIDAS run.
>
>     Zhi
>
>
>     -----Original Message-----
>     From: [email protected]
>     <mailto:[email protected]>
>     [mailto:[email protected]
>     <mailto:[email protected]>] On Behalf Of Matthew
>     Chambers
>     Sent: Monday, October 05, 2009 12:40 PM
>     To: [email protected]
>     <mailto:[email protected]>
>     Subject: [spctools-discuss] Re: msconvert generated mzML file
>
>
>     OK. It worked as expected. Your spectra look like I'd expect QQQ full
>     spectra to look: messy... oops, I mean a signal-rich. :)  Tandem
>     really
>     took 30+ minutes to load that 20mb file? That might have more to
>     do with
>     Brian's observation that Insilicos Viewer couldn't read it. I
>     can't see
>     why it would be problematic looking at the file though. Maybe the
>     presence of chromatograms? Zhi, is this a MIDAS run?
>
>     -Matt
>


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