Getting started quickly
We recommend that you always run the latest stable version, currently 5.42.0. If you're running a version older than 5.8.3, you may find that the latest version of CPAN modules will not work.
Converting a TiB (Tebibyte) to ISO exclusively isn't directly possible because TiB is a unit of digital information (like a megabyte or gigabyte), while ISO is a file format used for disc images. However, I assume you're asking how to convert a file or data from a TiB (which seems to be a misunderstanding since you can't directly convert a unit of measurement to a file format) to an ISO file, or perhaps understanding the conversion in the context of data sizes and then creating an ISO image from data.