I think it would be useful to have a way of building multiple DVD iso's in a single session.
The main stumbling block as I see it would be naming them (because ImgBurn prompts for a name), but if the folder name or perhaps the DVD General Text field (e.g. easy to set in PgcEdit) was used as the basis that could be overcome.
Assumptions would be: One DVD per folder, all iso's to one destination.
At present, on the PC I'm using it takes about 3':30" to build a typical iso, which is fine, but if I'm going to do say, three or four, then I'm tied to the machine for the duration of all but the last one or I have to keep going back to check... you get the idea.
A Build Queue would allow one to get on with other things and leave the very competent ImgBurn to automate the process.