DVD Drive: Successful burn, but no data, still blank disc

Hello Friends,



I am on windows vista, my dvd writer is a TSSTcorp CDDVDW TS-L632N ATA Device. I tried to burn disc using this and its telling successful burn by using windows default burner.



And after that i re inserted my disc and and tried to view the contents, but its blank disc and again asking for format the blank disc. Earlier i have formatted the disc by clicking 'Show formatting options' and choose 'Mastered'. Because before this i have tried with Live File System disc and got a message like 'Windows cant format the disc'. And thus i tried this method.



I have tried with nero8 then. There also shows that burn success ful to my disc. And happily i re inserted the dvd and shows blank disc.



I have tried these steps for different manufacturers dvd and again badly the same result. And Then i have checked my status of updates of my drive and its shows me that its up to date.



The result is have lost my some dvd's but didnt gave my data.



I have write some months ago by using this. And that was successful.



Can any one help me out for this??