Disc cannot be burned

[Tier]

Trying to burn an audio disc from 3 FLAC files on my SSD, downloaded in "CD format". I get this error message: "None of the Tracks Could Be Added To The Audio Image. The Disc Cannot Be Burned." There is a new CD-R blank disc in the CD drive. I have Windows 10 64-bit updated to 20H2 on a Dell desktop PC. I can burn the disc with Windows Media Player but not with CDBurnerXP. It worked in the past. I have the latest version: 4.5.8.7128. What is wrong?

[Tier]

PS to above: The CDBurnerXP error log shows:

15/02/2021 16:32:18 (CDBurnerXP): System.IO.FileLoadException: The process cannot access the file because it is being used by another process. (Exception from HRESULT: 0x80070020)
   at Microsoft.Win32.Windows7.ICustomDestinationList.CommitList()
   at Microsoft.Win32.Windows7.TaskBarExtensions.AddTaskToJumplist(String title, String argument, String iconPath)
   at CDBurnerXP_Pro.modMain.LauchAfterAssemblyCheck(String[] args)

But there is no other process using the files.  So this does not help.

[Tier]

Still trying; disappointed that no one has replied.  The error log now shows a different error:

19/02/2021 15:13:53 (CDBurnerXP): System.Runtime.InteropServices.COMException (0x800402A7): Exception from HRESULT: 0x800402A7
   at RocketDivision.StarBurnX.StarBurnXClass.InitializeEx(String license, STARBURN_TRANSPORT transport)
   at CDBurnerXP.Burning.BurningEngine.InitialiseStarBurn()
   at CDBurnerXP_Pro.modMain.LauchAfterAssemblyCheck(String[] args)

So: why can I burn an audio disc with Windows media Player but not with CDBurnerXP?

[michaelbarrett]

The process of burning an audio disc is relatively simple. First, gather the audio files that you want to burn to the disc. Next, open your computer's CD or DVD burning software. Select the option to create an audio disc. Then, add the audio files to the disc. Finally, burn the disc.