File verification takes time

I used sony DVD to burn some data onto it using TSST corp CD/DVDW TS-L532L. This one comes with the presario V2000 series. I used Nero 6 to burn the DVD. I started with multisession. After burning, the file contents were not verified even after 5 mins and it showed a progress of 4% and then no further progress was observed. I aborted the task and after that the DVD shows no contents although it cannot be further burned as Nero pops in a msg like ‘Disc is not blank and so not writtable’. What cud b the possible error??Plz help!!!

Welcome to CD Freaks.

For what it’s worth , multi-session on DVDs is not something to be recommended.