Sharing CD ROM's with NT Server

[Tracy]

Hello. I hope that someone may be able to help me with my problem. I work on a NT Server machine. I have attempted to share my CD ROM with no sucess. I right clicked on the drive, share as and permissions have been assigned. The sole purpose of doing this is to access the CD ROM when needed for other client machines without a drive. When I access this CD drive accross the network I receive an error that tells me I do not have enough drive space to access this request. I really need to know what I am doing wrong. Any help you may provide will be greatly appreciated.
Tracy