problem with DVD RW

[rajwansh2003]

i can't erase my sony RW ?

 

[Ethan_Hunt]

So where's the problem?

 

[ashishstillthere]

my sony dvd r/w is giving me problem...its is reading dvd/cd but didnt writing...have tried alcohol/nero/ashampoo....when i insert blank cd/dvd...my computer started hanging...why its happening