How can I download my Starcraft Broodwar without the first CD. I can't install the expansion without the first CD because I lost it. Is there anyway I can download Starcraft on the internet then use my CD for expansion?

Hi, Nskyline342

As long as you have the key for SC, you can download the StarCraft Anthology from the online store for free. It includes both SC & Brood War, so you won't need to use the CD for BW.

We now offer downloads for many of our Battle.net games. If you have lost your Game CD's and still have your CD-key you can sign up for a Blizzard Battle.net account, register your game and download the game files. For more information, please visit our Game Download page here:
http://us.blizzard.com/support/article/24813

The game downloaders use the Blizzard downloader to download the necessary game files. For common issues and troubleshooting steps associated with the Blizzard Downloader, please visit our Blizzard Downloader Troubleshooting page here:
http://us.blizzard.com/support/article/21275

I'm afraid that the only option if you don't have your key is to purchase a new key.