Hi Bastien, This is with MIRA 4.0 RC4 on Linux, using a de novo single strain bacterial assembly, trying to produce a SAM file (I intend to use the same script on mapping assemblies where I want a SAM file without the long backbone reads). This works: $ miraconvert -f maf -t samnbb de_novo.maf x ... $ ls x* x.sam This works (although the output filename is a little surprising): $ rm x* $ miraconvert -f maf -t samnbb de_novo.maf x.samnbb ... $ ls x* x.sam Similarly this works: $ rm x* $ miraconvert -f maf de_novo.maf x.samnbb $ ls x* x.sam This fails in what seems like a strange way - presumably something about the outputs via the extension and the command line clash (samnbb vs sam): $ rm x* $ miraconvert -f maf -t samnbb de_novo.maf x.sam Loading from maf, saving to: sam samnbb Collecting basic SAM info from MAF file Sorting read info ... done Collecting basic SAM info from MAF file Duplicate: MIRA_c1 MAF file de_novo.maf at line 9: CO MIRA_c1 duplicate contig name? Error in MAF format, aborting. $ ls x* x.sam Regards, Peter -- You have received this mail because you are subscribed to the mira_talk mailing list. For information on how to subscribe or unsubscribe, please visit http://www.chevreux.org/mira_mailinglists.html