Windows 7 and restricting \ controlling CD\DVD


We need to restrict several Windows 7 (32) desktops with staff, Server 2003 really does not have anything, same as Win7 GPEDIT, seems to be all or nothing, however,

From the Windows 7 desktop:

- Windows 7 Explorer
- Go to the DVD\CD
- Right-Click Properties
- “Sharing”
- Advanced Sharing
- “Share this”
- Permissions
- Add Domain (User1, User2, Etc) or create a Domain group “AllowWin7CD” and add user to this,
- Remove default ‘Everyone’

Anyone see a security or problem with this? Simply sharing as a network resource and assigning domain rights.