Shared RealVideo/RealAudio streams are a pool of streams shared between many users. The streams are available on a first-come, first-served basis.
It is difficult to determine the number of shared streams that a user can have access to since that depends on how many other people are accessing the streams. Theoretically, the maximum number of shared streams available to a user is the number of streams in the pool. (This requires that only one user is accessing the shared pool of streams.)
If your business needs require guaranteed access to streams, you should consider the dedicated streams purchasing option that comes with some packages.
The bandwidth used by RealServer shared streams is applied to the monthly transfer limit.