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Brian, The problem is I cannot read the swp.1160404201500.DOW6comb.761.280.0_RHI_v330 file at all by any of our tools so it is difficult for me to diagnose the issue. However, I can tell that it was written by the RADX C++ LIBRARY. https://www.ral.ucar.edu/projects/titan/docs/radial_formats/doxygen/radx/html/main.html The RADX C++ LIBRARY support at variety of output formats including: - NetCDF CF/Radial - NCAR/EOL DORADE - Universal Format (UF) - NEXRAD archive level 2 Could you possibly experiment with different output formats? Best, Unidata IDV Support > I uploaded two files, successfully according to the message. > swp.1160404201500.DOW6comb.761.280.0_RHI_v330 is not read by IDV, while > swp.1101017233249.CWSR.0.175.0_RHI_v087 is read without issue. When I filled > out the form, I described the former as IDV not reading DOW data and the > latter as IDV reads DOW data, but I do not see those on the main menu item. > If I made a mistake in uploading, please let me know. > > Brian > > ________________________________________ > From: Unidata IDV Support [address@hidden] > Sent: Wednesday, April 20, 2016 8:31 PM > To: Brian Billings > Cc: address@hidden > Subject: [IDV #VQD-905475]: Doppler on Wheels sweep files > > Hi Brian, > > Please upload a data samples here: > > http://motherlode.ucar.edu/repository/alias/idvupload > > and let us know when they are there. Please upload both working and broken > data > samples. > > Best, > > Unidata IDV Support > > > Full Name: Brian Billings > > Email Address: address@hidden > > Organization: Millersville University > > Package Version: 5.2 build date:2015-08-26 18:19 UTC > > Operating System: Windows 7 > > Hardware: Java: home: C:\Users\bbillings\Desktop\IDV_5.2\jre version: > > 1.8.0_45 j3d:1.6.0-pre9-daily-experimental daily > > Description of problem: Trying to load in radar sweep files from a > > just-completed field deployment of the Doppler on Wheels. They look > > identical to files from six years ago that I verfied still work in version > > 5.2, but an error says they are not valid CDM files. It may be a problem > > with the data files, but I wanted to check to make sure there was nothing > > obvious that needed to be done in IDV to make the files read correctly. I > > can attach data file if needed. > > > > There was an error loading the data: > > Error creating data source:file.radar with: > > C:\Users\bbillings\Desktop\BJBpresents\MM16\DOW\swp.1160404201500.DOW6comb.761.280.0_RHI_v330 > > null > > java.io.IOException: Cant read > > C:/Users/bbillings/Desktop/BJBpresents/MM16/DOW/swp.1160404201500.DOW6comb.761.280.0_RHI_v330: > > not a valid CDM file. > > > > ****************** > > Stack trace: > > visad.VisADException: java.io.IOException: Cant read > > C:/Users/bbillings/Desktop/BJBpresents/MM16/DOW/swp.1160404201500.DOW6comb.761.280.0_RHI_v330: > > not a valid CDM file. > > at ucar.unidata.data.radar.CDMRadarAdapter.init(CDMRadarAdapter.java:507) > > at ucar.unidata.data.radar.CDMRadarAdapter.<init>(CDMRadarAdapter.java:215) > > at > > ucar.unidata.data.radar.CDMRadarDataSource.makeRadarAdapter(CDMRadarDataSource.java:688) > > at ucar.unidata.data.radar.RadarDataSource$1.run(RadarDataSource.java:298) > > at visad.util.ThreadManager.runInParallel(ThreadManager.java:273) > > at visad.util.ThreadManager.runInParallel(ThreadManager.java:245) > > at visad.util.ThreadManager.runInParallel(ThreadManager.java:212) > > at > > ucar.unidata.data.radar.RadarDataSource.makeAdapters(RadarDataSource.java:320) > > at > > ucar.unidata.data.radar.RadarDataSource.getAdapters(RadarDataSource.java:252) > > at > > ucar.unidata.data.radar.RadarDataSource.getRadarAdapters(RadarDataSource.java:637) > > at > > ucar.unidata.data.radar.CDMRadarDataSource.doMakeDataChoices(CDMRadarDataSource.java:412) > > at ucar.unidata.data.DataSourceImpl.getDataChoices(DataSourceImpl.java:1855) > > at ucar.unidata.data.DataManager.createDataSource(DataManager.java:1573) > > at > > ucar.unidata.idv.IntegratedDataViewer.createDataSource(IntegratedDataViewer.java:1979) > > at > > ucar.unidata.idv.IntegratedDataViewer.makeDataSource(IntegratedDataViewer.java:1896) > > at > > ucar.unidata.idv.IntegratedDataViewer.makeDataSource(IntegratedDataViewer.java:1830) > > at > > ucar.unidata.idv.IntegratedDataViewer.makeDataSource(IntegratedDataViewer.java:1803) > > at ucar.unidata.idv.chooser.IdvChooser.makeDataSource(IdvChooser.java:943) > > at > > ucar.unidata.idv.chooser.FileChooser.selectFilesInner(FileChooser.java:656) > > at ucar.unidata.idv.chooser.FileChooser.selectFiles(FileChooser.java:525) > > at ucar.unidata.idv.chooser.FileChooser.doLoadInThread(FileChooser.java:547) > > at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) > > at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) > > at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) > > at java.lang.reflect.Method.invoke(Unknown Source) > > at ucar.unidata.util.Misc$2.run(Misc.java:1215) > > at ucar.unidata.util.Misc$3.run(Misc.java:1243) > > > > > > > > > Ticket Details > =================== > Ticket ID: VQD-905475 > Department: Support IDV > Priority: Normal > Status: Open > Ticket Details =================== Ticket ID: VQD-905475 Department: Support IDV Priority: Normal Status: Open