Hi, I just observed that a newly created archive of my C: disk is highly fragmented. The archive has been created on another disk, F:, and when analyzing F: fragmentation, I got the information that there was more than 30,000 fragments for Myarchive.arx. I guess this comes from the way it is created. Is it safe to defragment it (using contig from sysinternals, jkdefrag or any Windows defragmenter that rely on Microsoft defrag API) ? The .arx file is in that case around 10Gb big. Thanks.