[ubuntu] Unable to mount DVD-R

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http://ubuntuforums.org – In 12.10, any time I put a DVD-R in my disc drive I'm presented with this prompt: I'm trying to mount an .iso image to a disc with Furius ISO mount, but the disc drive is not recognized in the program and I have to assume it's because of this issue. I've tried watching standard DVDs and haven't had a problem with them, so it seems to only be problematic with DVD-R. I'd very much appreciate any help on this issue. Please let me know if any more info is needed. (Hardware)