This is unfortunately a well known problem with the philips data, which are typically stored with one file and one header per slice. I would be happy to hear about people who have experience with rapid conversion of Philips data. Best Torben > On 27 Aug 2015, at 10:29, Elisa Kallioniemi <[log in to unmask]> wrote: > > Dear SPM experts, > > Using the Dicom to Nifti conversion with the "basic" SPM conversion lasts relatively long time with a 32bit computer. Is there any way of making the conversion faster? > > > Best regards, > Elisa