No way. Tons of space.
But I just found out that it may be a strange file name that K3b might be getting stuck on, because I've tried burning other data DVD's since then and they worked.
So, it turns out it may be an abnormal file name that's the problem.
I've tried to use the Rename Audio Files plugin in K3B, and it reports as successful, but when I go to burn, I get the same error.
Here's what I'll do, I'll use a DVD-RW as a test, and I'll add folders I want included into my DVD data project,
then, when I hit that folder or file that's ruining the project, I can isolate it and post the results hear.