Cannot convert file data type to device data type?

[dbminter]

Was burning an image to a DVD+RW when the Topic error message came up at the start of Verify. I've never seen it before, but, it probably has a reasonable explanation. The image was a CD sized one that I was burning to DVD purposefully. I've done this before, burning CD sized data images to DVD for testing things like bootable discs, etc. But, this is the first time I've ever come across this dialog. But, I am guess that is what it means? That the file data type was CD, given its size of about 785 MB, and the device data type was DVD+RW, based on the disc present in the device?

[LIGHTNING UK!]

What 'mode' did it mention on the main screen where it displays the 'Sectors' info? It's probably just in a format where the user data takes up more than 2048 bytes. If that's the case, it's impossible to convert down to 2048 bytes without losing data - hence it won't convert.

[dbminter]

Sorry, don't have the image file anymore. I could try to image the disc and then try to burn that new image to a DVD+RW and see.