Hi,
I've never had any problems with using DVD-Rs burnt with IMGBurn as masters for DVD Replication before, but the company I use has recently upgraded it Eclipse software and the last title I have sent has emailed me with the following warning:
LINK
As I say, I've never had any problems before, I would hate to stop using IMGBurn, and so I wanted to make you aware of this issue.
All the best
Matt