I was trying to burn something today with Imgburn, and I got this error: "I/O Error". it was working until I upgraded from vista to win 7, could it be a driver issue with my dvd drive? It's weird how it works just fine for reading, it just can't write.

Your CD drive or DVD drive is missing or not recognized by Windows or other programs, so you cannot play or access a CD or DVD. This issue might have occurred after you installed, Dell Inspiron 15 3520 DVD Drive uninstalled, or updated a program or you updated Windows.

Or, this issue may occur if one of the following conditions is true:
You upgrade the computer to Windows Vista or Windows 7
You install a Windows service pack
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You install or uninstall a CD or DVD recording program
You uninstall Microsoft Digital Image
You may see one of the following error messages:
One of the following error messages appears when you view the CD drive or the DVD drive in Device Manager.

Error message 1
The device is not working properly because Windows cannot load the drivers required for this device (Code 31). Dell Inspiron 14R 5420 dvd drive burner.
Error message 2
A driver for this device was not required, and has been disabled (Code 32 or Code 31).
Error message 3
Your registry might be corrupted. (Code 19)
An "error code 39" error message.
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A message that resembles the following appears in the notification area:
Windows successfully loaded the device driver for this hardware but cannot find the hardware device. (Code 41)