>>7
Not until recently, and not always supported.
What? Zip has been supporting volumes for as long as I can remember. It had it at least as early as 1990, if not before. So did ARJ, LHA, and whatever else was floating around back then.
Have you used pkzip? No? Then you don't have a clue about zip's history, kthx.
Also, you can emulate solid compression with zip too (zip without compression, then super zip the result), but it's a PITA, so most people use more modern formats.