TIPS When you use SRename with a file manager like Directory Opus, and you have set it up to receive multiple filenames ({O} option in DOpus), place that option at the end of the command line because if the filename sequence is too big the arguments after it will be omitted. For example don't give DOpus the command "SRename QUIET {O} UP", but "SRename QUIET UP {O}". Since SRename has no way of knowing the maximum filename length that each filesystem allows, care must be taken by the user not to supply longer filenames than the filesystem can handle so that filename clashes won't occur. Although SRename can work with filenames that contain wildcard characters (i.e. parentheses) and thus are recognised by the OS as file matching patterns, it will only rename such filenames if it can find them immediately in the supplied path. It is not possible for example to specify such a filename and tell SRename to recurse through the directory tree, renaming every occurrence of this filename if it does not find it in the starting directory, because once it can't find it it will decide that it's a file-matching pattern, which is not what it was intended for by the user. I advise that such filenames that confuse the OS and other applications not be used.