But those days may not be so bygone on Netflix.
At the GigaOm Mobilize conference here, Todd Yellin, vice president of product innovation at Netflix, said that the company will bring those DVD-style extras to its original programming.
"The core of the experience is watching the story that the directors and writers contended, and that's like 99 percent of what it is," he said. "But supplemental content, whether that's extra features or so forth, we're going to test that around our own originals."
Netflix, of course, hasof hugely popular original programming, from the Emmy-winning "House of Cards" to its most recent major breakout, " ."
Yellin said that if testing with the company's original shows goes well, Netflix may go back and offer extras for more of its catalog. "We'll experiment around our originals, and if that goes well, then we'll go back to our partners that we license a ton of content from, and I can see possibly doing some extra or supplemental content around that."