Comment 34 for bug 412413

I cannot repeat the issue you reported. I downloaded 4 DVD of lucid without any problem at 32-bit system with U9.10. But I have one explanation for your trouble. These DVD images are snapshosts and are changed often.I guess your lucid-dvd-amd64.iso changed at server before you finished download. As a result, zsync metadata you get at the start of download process doesn't match iso image at server when you was finishing the downloadand zsync client give up with "abort" message.

II think that you can start your zsync process again; in this case, zsync client will use iso image you already downloaded as a seed and will update it with changes. Can you confirm this? Yust run again the same command in the directory with your unfinished download:

$ zsync http://cdimage.ubuntu.com/kubuntu/dvd/current/lucid-dvd-amd64.iso.zsync