cant add new files to DVD RW (mulitsession disc)

I want to add some more files to a DVD RW, I put the disc in it reads correctly but when I run Nero, it isn't reconizing the disc or something (the files that are already on the disc are not showing up in Nero)the name of the disc isn't showing up either. what am I doing wrong?

 

Can you open the disk with Windows Explorer and read the files?
Did you save a log file?

 

yes I can open in windows. I didn't save a log file because it burnt sucessfully.

 

If you start Nero Burning ROM and click the 'multisession' tab then 'continue multisession' then 'new', it should list the sessions and let you select one and show the files.
If not, then erase the disk and try again.

 

I cant find Nero Burning ROM! where is it?

 

From Nero StartSmart or
Program Files > Nero 7 > Core > Nero.exe

 

don't have nero 7 and It's not showing up in applications tab. Does older versions have it too? Because It's not in Applications. Not even in the Nero Program folder. (used right click Selected properties And browsed all of nero's folder) Still can't find it.

 

click Start > All Programs > Nero ??