conventional slr lens compatible with digital slr?

[roadhog]

Something that I'm sure is a very basic question but confuses me... I'm in the process of upgrading from a conventional slr camera with several lenses to a digital slr (I think the canon 30d probably).

Are all my lenses for my conventional slr trash as far as my digital slr is concerned or will they also work to any degree on a digital slr camera. All my conventional slr stuff is canon as well.

I think they are not usable on the digital body but just want to confirm. Thanks.

[roadhog]

nevermind. I finally entered the correct keywords in a google seach and found my answers. guess everyone here is too sick of this topic to respond...