Symbolic links disappear after reboot

[dev.loop at gmail.com]

Hi,

I created a symlink 
'lrwxrwxrwx  1 root root 8 21. Apr 18:57 /dev/dvd -> /dev/hdc' 
for mplayer to find the DVD when I start it with 
'mplayer dvd://1'

But everytime I reboot, the symlink is gone and I have to create it again.

Anyone else seen this ?
Maybe it is related to the change from dev to udev. Dunno anything about udev.

Any help, or pointers highly appreciated.
Cheers,
/dev/loop