Sidi is a System Utilities software developed by Samopal Corporation. After our trial and test, the software is proved to be official, secure and free. Here is the official description for Sidi:
Edit by Brothersoft: This utility allows to block the eject button on a computer CD or DVD drive. I had to write it to Prevent my little daughter from opening the CD tray and running off with the CD found in it.
The program places an icon in the system tray that gives you Instant Access to lock/unlock commands. It can be set to start with Windows and Automatically Lock your CD/DVD drive(s).
I found a couple of Similar programs on the web, but they weren't free, and I just find it laughable when people want $20 for a little program like this. Enjoy it for free you can free download Sidi 1.0 now.