Bring it on disk if you want, but also print the 50 pages of code, prepared to give it to the manager to keep, barring any NDAs or the like. If you can't let him keep some chunk of code, that's fine. He'll understand.

Here's the scenario you want: You whip out the stack of code, with your best stuff on top. Paper clip sections together. Hand him different packets. "Here's a command-line utility that is a grep for image files. I'm really proud of that one because X, and it wound up saving the marketing department 2 hours a day." He thumbs through it, sees that it is well-written code, clean enough to eat off of. Your pride shows. "Here's a module I wrote for tracking ICBMs, using Parse::RecDescent. What's cool about this one is...."

Now, he may go looking at the code if you give it to him on disk. Maybe he'll want to show others in the department. But when you're face-to-face, and you're showin' your stuff, if it's not on paper, chances are he's not gonna see it.

"Show me the code!"