>>>
19:54:44 T:8144 NOTICE: CExternalPlayer:
rocess: Player : C:\Users\Dell\AppData\Roaming\XBMC\userdata\PlayDisc.exe
19:54:44 T:8144 NOTICE: CExternalPlayer:
rocess: File : D:\video\asdfkl\S11\S11E15 lkoiuoj.mp4
19:54:44 T:8144 NOTICE: CExternalPlayer:
rocess: Content:
19:54:44 T:8144 NOTICE: CExternalPlayer:
rocess: Args : "{1}"
19:54:44 T:8144 NOTICE: CExternalPlayer:
rocess: Start
19:54:44 T:8144 DEBUG: CExternalPlayer:
rocess: Unlocking foreground window
19:54:44 T:8144 DEBUG: CSoftAE::Suspend - Suspending AE processing
19:54:44 T:8144 NOTICE: CExternalPlayer::ExecuteAppW32: C:\Users\Dell\AppData\Roaming\XBMC\userdata\PlayDisc.exe "C:\Users\Dell\AppData\Roaming\XBMC\userdata\PlayDisc.exe" "D:\video\asdfkl\S11\S11E15 lkoiuoj.mp4"
19:54:44 T:8144 NOTICE: CExternalPlayer::ExecuteAppW32 - Failure: 3
19:54:44 T:8144 NOTICE: CExternalPlayer:
rocess: Stop
19:54:44 T:8144 NOTICE: CExternalPlayer:
rocess: Showing XBMC window
>>>
Looks like it's trying to start an external player in a folder that doesn't exist. There is no C:\Users\Dell. The machine is not a Dell, so I don't know where it would have got the idea that that path existed.