dvd drive vanishes

[ashishnehete]

hey guys i just brought mosserbear dvd-r pack of 100 disk but when ever i put it in the dvd drive the drive vanishes and in device manager it says diconnected
my machine is dell inspiron 6400 vista 32 bit
is there a problem with my drives or all the disk
disk other from that pack are runnin

[CA50]

is the prob occurs only with the dvds u brought???
Try any linux live cd to burn data.
post ur result