I am hoping to download or obtain the CD-ROM disc for Sibelius 5.1. I have an account with Sibelius, but can't find this on the Avid Web site. Any suggestions?
Sibelius 5.1 is not available anymore, but you have the possibility to download the 8.5 version which is considered to be the latest one on the market.
Depending on your operating system, here are the download links for both Mac and Windows:
If the links don't work, then you have to register yourself at the following address: http://connect.avid.com/Sibelius-Trial.html