Thanks for at least considering it! The latter would work in my scenario (just copy until the next file doesn't fit, then pause and prompt for a new target). Th

Thanks for at least considering it! The latter would work in my scenario (just copy until the next file doesn't fit, then pause and prompt for a new target). The files I work with are seldom larger than a few hundred MB, and many are only a few dozen KB. Even in the case where a few GB are wasted per disk due to unusually large files showing up, a few GB is nothing compared to the overall size of drives these days. I routinely waste at least that much when doing similar multi-disk backups manually by selecting files which fit. Simplicity and ease of use are big benefits when it comes to backing up hundreds of TBs.