Can I run multiple instances of jigdo-lite to download images in parallel?
Absolutely. However, to avoid filename clashing, you should run each jigdo-lite instance in its own separate directory. You can start as many instances as you want, go to bed, and when you wake up, all the ISO images will be waiting for you on your hard drive. Be aware that jigdo-lite is bandwidth and CPU intensive, so you won’t want to use your computer with multiple instances running in tandem.