Update your burner's firmware (remove any disc and close the tray before updating then reboot after it's finished).
Try burning at 8x or 12x (2.4x isn't even supported by your burner on that media). If it doesn't work then try with Verbatim or Taiyo Yuden blanks.
You can see all that was fixed here. ImgBurn couldn't cause your DMA problem even if it wanted to: it simply interact that deep with your system, but Windows is known to fall back to PIO mode for its own unclear reasons while still showing the drives as using DMA mode in device manager.
I think you can use SIW (look under Hardware) or similar programs to find out which controller you have and its current mode.
At that stage ImgBurn should be showing a message telling you to re-insert the disc for the verify stage. As for your burner, if a lens cleaning disc doesn't help then you should start looking for a normal-size burner in an external enclosure of your choice.
Use the Calculate button and you'll see the warning(s) in the log.
Also, by default, ImgBurn stops and waits on the Image Details dialog before actually burning, and that's where you'd see the warnings in the log.
You can try, but if the I/O is stuck then it won't close because ImgBurn isn't in control anymore: it's waiting for a response from the drive. Look for the latest drivers for the controller where the burner is connected to.
As for the disc you'll have to test it manually to see if it was a good burn or not.
Your burner doesn't like those blanks. As I said before, you could either try with the 2.4x ones or get an external burner.
You could try a lens cleaning disc on that burner to see if it helps.
Have you tried burning at 6x? Also try with the 2.4x Verbatim blanks if you can find them.
It would be better if you could get a normal-size burner in an external enclosure of your choice, laptop burners aren't good.
http://en.wikipedia.org/wiki/ISO_9660
http://en.wikipedia.org/wiki/Universal_Disk_Format
Yes, ISO9660+UDF 1.02 is used for DVD-Video content to make the disc most compatible with all kinds of DVD players.
Samsung burners automatically booktype +R DL media to DVD-ROM, provided that there were no burning errors. Did it verify OK? Does your x360 play backups?
As LUK said the software can't force the hardware to do something it doesn't want to do. What's the real problem you're having? The drive should be doing good burns on all those listed speeds.