Nero: Data Verification failed!!! Help!!!

[cihuii]

I just burned my Mpeg files to a Panasonic DVD-R with my Toshiba DVD burner in my laptop.

I used Nero Express ver. 5.5.10.28
I created 2 folders in the DVD and they total up to 4 GB.

I burned a Non-Multisession DVD with the Data Verification box ticked.
I left it for a while.
After the burning process had completed, Nero Verifies the DVD and gave me that error message "Data verification Failed"

I browse the DVD, all the files are in place and work properly.
I want to lend the DVD to my friend who only has a standard DVD-Rom Drive.
Will he be able to view the files like I do?
Will there be any further damage to the DVD?
Is there anything that I can do to the DVD to fix it?

Thanks.