Re: [proteowizard-support] msconvert data-compression problem

[Brian P. <bs...@pr...>]

Hi Magnus,

That would be surprising - are you certain of this? What are you seeing
from the downstream application? Do your mzML files contain anything like
the following?

            <binaryDataArray encodedLength="1863392">
              <cvParam cvRef="MS" accession="MS:1000523" name="64-bit
float" value=""/>
              *<cvParam cvRef="MS" accession="MS:1000574" name="zlib
compression" value=""/>*
              <cvParam cvRef="MS" accession="MS:1000514" name="m/z array"
value="" unitCvRef="MS" unitAccession="MS:1000040" unitName="m/z"/>

Best regards,

Brian Pratt

On Mon, May 25, 2026 at 1:13 AM Magnus Sellstedt <mag...@um...>
wrote:

> Hello,
>
> I am using msconvert to convert Agilent d.files to uncompressed
> mzML-files. This has worked fine previously, but after a download of a
> recent version of msconvert, the mzML-files now appear to be somewhat
> compressed regardless of if I turn zlib-compression on or off via the GUI.
> My downstream application does not work on compressed files. How can I
> generate the uncompressed mzML-files?
>
> Best
> Magnus Sellstedt
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