You only need DLT and DDP control if you are creating a DVD9. Some replicators will only accept a DVD5 on a DLT, but many will accept a DVD-R as a master.
So yes, you can create full length, mass produced videos with this software. We do, quite regularly.
Evatone in Orlando, does a great job with our DVD5 masters.
Some require glass masters but this seems to be becoming the exception. Glass masters means a very expensive burner. You can get DLT drives pretty cheap also but as SPOT said you can just shop around for ones that'll work off regular DVD-R masters.
Farss, the glass master is made by the replicator, not the person submitting the video. The glass master is used in the actual replication process. The discs are "pressed" using the glass master as a stamp, for lack of a better word, when replicating 1000 or more discs.
[Addendum] Here's a link that gives a good explanation of the process.