Hello everyone, When I try to open 4D spectra in CCPN they are interpreted as some kind of 3D experiment consisting of F4, F3 and F2. The last recorded nucleus (in F1) is always missing. The spectra look quite well in TOPSPIN where they were processed. Usually I use bruk2ucsf that comes with SPARKY for data conversion but this failed too, due to a non further explained segmentation error. The error message displayed when opening a spectrum in CCPN is: "Warning: spectrum (Expt_1, 13): data file /home/marcel/test.090422/13/pdata/1/3rrr not accessible" As it is a 4D there is no 3rrr only a 4rrrr. Has anyone an idea why CPPN might misinterpret the procs/4rrrr file and is able to help me out? I am using Analysis 2.0.6 Thank you in advance. Best wishes Marcel -- Marcel Jurk Leibniz Institut fuer Molekulare Pharmakologie (FMP) Solution NMR (AG Schmieder) Robert-Roessle-Str. 10 13125 Berlin Germany eMail: [log in to unmask] Phone: +49-30-94793223 Fax: +49-030-94793169