Hi,
I suppose your PCI Serial Port Properties looks like the one in PCI serial port drivers couldn't install. As DSPatrick suggests, the best solution now is to update your drivers.
You can right click PCI Serial Port and choose Update driver. When you are asked how do you want to search for drivers, choose Search automatically for drivers. Please make sure you have a network connection.
If it doesn’t help, right click PCI Serial Port and uninstall it. After it’s uninstalled, right click at Other devices and choose Scan for hardware changes. If it still doesn’t help, please let me know and I’d like to find a solution for you.
Regarding why first DVD was burnt successfully but second one failed even you had done nothing, if the problem still exists after updating of drivers, we could try to find out why. If the problem doesn’t reappear, it’s hard to find solution for a one-time issue because we couldn’t analyze root cause without logs.
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