I see that Infra Recorder was in beta for a portable app before but was stopped because of a bug. Well I guess they must have fixed it because they have a zipped portable version from their website now. I'm sure it would be easy to take that and package it as a portableapps.com app now. A good CD/DVD burner is all that's missing from the app lineup.
John's just trying to get some other applications updated and such, but I agree it would be nice to have it officially released.